52639 + Interview Questions in Secondary School in Chemistry Page 12 InterviewSolution

551.	To indicate the presence of a gaseous reactant or product, we use the symbol (i) (Product) g or (Reactant) g(ii) (Product) ⬇️ or (Reactant) ⬆(iii) (Product) ⬇️ or (Reactant) ⬆(iv) (Product) ⬆ or (Reactant) ⬇️
Answer» ANSWER: PRODUCT) ⬆ or (REACTANT) ⬇️ Explanation: HOPE its HELPFUL

551.

To indicate the presence of a gaseous reactant or product, we use the symbol (i) (Product) g or (Reactant) g(ii) (Product) ⬇️ or (Reactant) ⬆(iii) (Product) ⬇️ or (Reactant) ⬆(iv) (Product) ⬆ or (Reactant) ⬇️

Answer»

ANSWER:

PRODUCT) ⬆ or (REACTANT) ⬇️

Explanation:

HOPE its HELPFUL

Discussion

552.	Explain structural isomerism in co-ordination compound.
Answer» ANSWER: Structural Isomers. Isomers that CONTAIN the same number of atoms of each kind but differ in which atoms are bonded to ONE another are called structural isomers, which differ in structure or bond type. For inorganic complexes, there are three TYPES of structural isomers: ionization, coordination and linkage. Explanation: mark me as Brainliest

552.

Explain structural isomerism in co-ordination compound.

Answer»

ANSWER:

Structural Isomers. Isomers that CONTAIN the same number of atoms of each kind but differ in which atoms are bonded to ONE another are called structural isomers, which differ in structure or bond type. For inorganic complexes, there are three TYPES of structural isomers: ionization, coordination and linkage.

Explanation:

mark me as Brainliest

Discussion

553.	5. Which one of the following statement is incorrect? a. Hydrogen is an element. b. All elements are solid at room temperature. c. The element mercury is liquid at room temperature. d. Beryllium contains only one type of atom.
Answer» Answer: answer is b if answer HELPS mark me as a BRAINLIST and FOLLOW me

553.

5. Which one of the following statement is incorrect? a. Hydrogen is an element. b. All elements are solid at room temperature. c. The element mercury is liquid at room temperature. d. Beryllium contains only one type of atom.

Answer»

Answer:

answer is b

if answer HELPS mark me as a BRAINLIST and FOLLOW me

Discussion

554.	If you mix a frog and a toad together what do you get?
Answer» we will get a MIXTURE of FORGOT or toad that is -co2 + HO2 that is a thureom that you don't not little BOY

Discussion

555.	Which noble gas element has an electronic configuration like that of Li+
Answer» ★᭄ꦿ᭄Answer★᭄ꦿ᭄ Lithium ion ( ) has two valence electrons and is equal to noble gas HELIUM electron CONFIGURATION. THEREFORE, lithium ion electron configuration is similar to helium (noble gas) configuration.

555.

Which noble gas element has an electronic configuration like that of Li+

Answer»

★᭄ꦿ᭄Answer★᭄ꦿ᭄

Lithium ion ( ) has two valence electrons and is equal to noble gas HELIUM electron CONFIGURATION. THEREFORE, lithium ion electron configuration is similar to helium (noble gas) configuration.

Discussion

556.	Which one of the following statement is incorrect?a. Hydrogen is an element.b. All elements are solid at room temperature.c. The element mercury is liquid at room temperature.d. Beryllium contains only one type of atom
Answer» ANSWER: b. Explanation: all ELEMENTS are not in SOLID form some are in gaseous form or some are in liquid form some ex- of elements with their state solid - sodium, MAGNESIUM,iron liquid - mercury,bromine gas - hydrogen, oxygen, neon

556.

Which one of the following statement is incorrect?a. Hydrogen is an element.b. All elements are solid at room temperature.c. The element mercury is liquid at room temperature.d. Beryllium contains only one type of atom

Answer»

ANSWER:

b.

Explanation:

all ELEMENTS are not in SOLID form some are in gaseous form or some are in liquid form

some ex- of elements with their state

solid - sodium, MAGNESIUM,iron

liquid - mercury,bromine

gas - hydrogen, oxygen, neon

Discussion

557.	A molecule which breaks and give Hydrogen and Oxygen is a. Carbon dioxide b. Ammonia c. Water d. Methane
Answer» Answer: Explanation: WATER When two HYDROGENS and an oxygen share electrons via covalent bonds, a water molecule is FORMED. An example of a SIMPLE chemical reaction is the breaking down of hydrogen peroxide MOLECULES, each of which consists of two hydrogen atoms bonded to two oxygen atoms (H2O2).

557.

A molecule which breaks and give Hydrogen and Oxygen is a. Carbon dioxide b. Ammonia c. Water d. Methane

Answer»

Answer:

Explanation:

WATER

When two HYDROGENS and an oxygen share electrons via covalent bonds, a water molecule is FORMED. An example of a SIMPLE chemical reaction is the breaking down of hydrogen peroxide MOLECULES, each of which consists of two hydrogen atoms bonded to two oxygen atoms (H2O2).

Discussion

558.	The compound that has greater rate of diffusion among C2 H 6 , C3 H 6 , CH 4and C 4 H10 at normal temperature and pressure is
Answer» EXPLANATION: HTTPS://www.science.gov/topicpages/c/c2h2+c2h6+ch4 It is SAFE...

558.

The compound that has greater rate of diffusion among C2 H 6 , C3 H 6 , CH 4and C 4 H10 at normal temperature and pressure is

Answer»

EXPLANATION:

HTTPS://www.science.gov/topicpages/c/c2h2+c2h6+ch4

It is SAFE...

Discussion

559.	Can I get correct answer here . pls don't spam I will report it
Answer» Answer: 16.a 17. hi sis GOOD morning how are you.i know only 16 we still didn't LEARN TRENDS .

559.

Can I get correct answer here . pls don't spam I will report it

Answer»

Answer:

16.a

17.

hi sis GOOD morning how are you.i know only 16 we still didn't LEARN TRENDS

.

Discussion

560.	Chemistry question can any one answer it ?
Answer» Answer: 2nd box Explanation: PLEASE MARK as BRAINLIEST N THANK me

560.

Chemistry question can any one answer it ?

Answer»

Answer:

2nd box

Explanation:

PLEASE MARK as BRAINLIEST N THANK me

Discussion

561.	Define polymer . give it's classification on basis of structure.
Answer» Ribosomes are found 'free' in the cytoplasm or bound to the endoplasmic RETICULUM (ER) to form ROUGH ER. In a MAMMALIAN cell there can be as many as 10 million ribosomes. Several ribosomes can be attached to the same mRNA STRAND, this structure is called a polysome. Ribosomes have only a temporary existence.

561.

Define polymer . give it's classification on basis of structure.

Answer»

Ribosomes are found 'free' in the cytoplasm or bound to the endoplasmic RETICULUM (ER) to form ROUGH ER. In a MAMMALIAN cell there can be as many as 10 million ribosomes. Several ribosomes can be attached to the same mRNA STRAND, this structure is called a polysome. Ribosomes have only a temporary existence.

Discussion

562.	What is molecular mass??Good morning all my friendsdon't spam f ree point
Answer» ANSWER: The molecular MASS is the mass of a given molecule: it is measured in daltons. Different MOLECULES of the same compound may have different molecular masses because they contain different ISOTOPES of an ELEMENT

562.

What is molecular mass??Good morning all my friendsdon't spam f ree point

Answer»

ANSWER:

The molecular MASS is the mass of a given molecule: it is measured in daltons. Different MOLECULES of the same compound may have different molecular masses because they contain different ISOTOPES of an ELEMENT

Discussion

563.	What is the organic search come
Answer» ANSWER: ka re chindi mindi PHIR se AA GAYA

563.

What is the organic search come

Answer»

ANSWER:

ka re chindi mindi PHIR se AA GAYA

Discussion

564.	What is the diferences between CuO and Cu2O?
Answer» Explanation: Both are p-type semiconductors, but Cu2O has a band gap of 2eV whereas CuO has a band gap of 1.2 eV — 1.9 eV. Cu2O is obtained by oxidation of copper metal or reduction of copper(II) SOLUTIONS with sulfur oxide, whereas CuO is obtained by pyrometallurgical PROCESSES USED to extract copper from ORES.

564.

What is the diferences between CuO and Cu2O?

Answer»

Explanation:

Both are p-type semiconductors, but Cu2O has a band gap of 2eV whereas CuO has a band gap of 1.2 eV — 1.9 eV. Cu2O is obtained by oxidation of copper metal or reduction of copper(II) SOLUTIONS with sulfur oxide, whereas CuO is obtained by pyrometallurgical PROCESSES USED to extract copper from ORES.

Discussion

565.	2. Which one of the following elements is not a metal? a. Sodium b. Nitrogen c. Magnesium d. Lithium
Answer» ANSWER: NITROGEN is NON METAL in this QUESTION

565.

2. Which one of the following elements is not a metal? a. Sodium b. Nitrogen c. Magnesium d. Lithium

Answer»

ANSWER:

NITROGEN is NON METAL in this QUESTION

Discussion

566.	Chemistry Assignmentmultiple choice Question lolto the quantity of malter present in an objects Escalled its2- which of the following is lare rigid (s)?mans3 which of the following state ments ů / are correct:
Answer» Answer: 2- don't KNOW 3- don't know

566.

Chemistry Assignmentmultiple choice Question lolto the quantity of malter present in an objects Escalled its2- which of the following is lare rigid (s)?mans3 which of the following state ments ů / are correct:

Answer»

Answer:

2- don't KNOW

3- don't know

Discussion

567.	Classify the following substances as one/two/ there acidic/acidic. HCL, HSO4 , HNO3, H,BO.H.Ca(oH)2, PO NaOH,Fe (OH)3
Answer» ANSWER: $\huge\pink{\boxed{A}}\green{\boxed{N}} \purple{\boxed{S}}\blue{\boxed{W}}\orange{\boxed{E}}\red{\boxed{R}}$ $\huge\blue{\underline{\underline{\texttt{\purple{❥ᴀ᭄ɴsᴡᴇʀ࿐}}}}}$ $\huge\rm{\orange{\underline{\underline{Answer→}}}}$ $\dag \tt \: \red{Q} \blue{U} \purple{E} \green{S} \red{T} \blue{I} \pink{O} \green{N}$ ${\huge{\blue\longrightarrow{\texttt{\orange A\red N\green S\pink W\blue E\purple R\red}}}}$ $\huge\bold{\textbf{\textsf{{\color{blue}{Question}}}}}$ $\huge\bold{\textbf{\textsf{{\color{Purple}{CONGRATULATIONS}}}}}$ $\huge{\textbf{\textsf{{\red{have \: a \: great \: day \: }}{\red{ahead}}}}}$ $\Huge{\textbf{\textsf{{\color{Magenta}{⛄A}}{\red{N}}{\purple{S}}{\pink{W}}{\blue{E}}{\green{R}}{\red{♡}}{\purple{࿐⛄}}{\color{pink}{:}}}}} \⛄$ $\huge{\mathtt{{\red{\boxed{\tt{\pink{\pink{Ans}\purple{wer}}}}}}}}$ $\huge{\underline{\mathtt{\red{A}\pink{N}\green{S}\blue{W}\purple{E}\orange{R}}}}$

567.

Classify the following substances as one/two/ there acidic/acidic. HCL, HSO4 , HNO3, H,BO.H.Ca(oH)2, PO NaOH,Fe (OH)3

Answer»

ANSWER:

$\huge\pink{\boxed{A}}\green{\boxed{N}} \purple{\boxed{S}}\blue{\boxed{W}}\orange{\boxed{E}}\red{\boxed{R}}$ $\huge\blue{\underline{\underline{\texttt{\purple{❥ᴀ᭄ɴsᴡᴇʀ࿐}}}}}$ $\huge\rm{\orange{\underline{\underline{Answer→}}}}$

$\dag \tt \: \red{Q} \blue{U} \purple{E} \green{S} \red{T} \blue{I} \pink{O} \green{N}$ ${\huge{\blue\longrightarrow{\texttt{\orange A\red N\green S\pink W\blue E\purple R\red}}}}$ $\huge\bold{\textbf{\textsf{{\color{blue}{Question}}}}}$ $\huge\bold{\textbf{\textsf{{\color{Purple}{CONGRATULATIONS}}}}}$ $\huge{\textbf{\textsf{{\red{have \: a \: great \: day \: }}{\red{ahead}}}}}$

$\Huge{\textbf{\textsf{{\color{Magenta}{⛄A}}{\red{N}}{\purple{S}}{\pink{W}}{\blue{E}}{\green{R}}{\red{♡}}{\purple{࿐⛄}}{\color{pink}{:}}}}} \⛄$

$\huge{\mathtt{{\red{\boxed{\tt{\pink{\pink{Ans}\purple{wer}}}}}}}}$

$\huge{\underline{\mathtt{\red{A}\pink{N}\green{S}\blue{W}\purple{E}\orange{R}}}}$

Discussion

568.	Which of the following is correct for N-³ * a) e=p=n=10 b) e=7 p=10 n = 7 c) e=10 p=7 n=7. very urgent please
Answer» <P>Answer: Here is your answer Explanation: N-³ p = 7 n = 7 e = 10 ( since 3 electrons are ADDED to {N} ) 3rd OPTION is the answer

568.

Which of the following is correct for N-³ * a) e=p=n=10 b) e=7 p=10 n = 7 c) e=10 p=7 n=7. very urgent please

Answer»

<P>Answer:

Here is your answer

Explanation:

N-³

p = 7

n = 7

e = 10 ( since 3 electrons are ADDED to {N} )

3rd OPTION is the answer

Discussion

569.	Which has stable electronic configuration ?Ni 2 +or Fe 3 + explain
Answer» Answer: The electronic CONFIGURATION of Ni+2 = [Ar] 3d8 The electronic configuration pf Fe+3 = [Ar] 3d5. So, as we know that half filled subshells are more STABLE, Thus we can see that Fe+3 ION will be more stable than Ni+2 , because of more number of exchanges in Half filled SUBSHELL.

569.

Which has stable electronic configuration ?Ni 2 +or Fe 3 + explain

Answer»

Answer:

The electronic CONFIGURATION of Ni+2 = [Ar] 3d8

The electronic configuration pf Fe+3 = [Ar] 3d5.

So, as we know that half filled subshells are more STABLE, Thus we can see that Fe+3 ION will be more stable than Ni+2 , because of more number of exchanges in Half filled SUBSHELL.

Discussion

570.	now write the formula of following compounds : calcium carbonate ,zinc sulphate ,aluminium sulphate , silver chloride ,sodium carbonate ,potassium hydrogen carbonate, iron sulphate ,copper sulphate
Answer» Answer: *Good* *morning. Q8) WRITE the chemical formula of the following compounds in a step by step manner - (a) Potassium Chloride (b) Sodium Bromide (c) Potassium Nitrate (d) Calcium Hydroxide (e) Calcium Bicarbonate (f) Sodium Bisulphate (g) Potassium sulphate (h) Zinc Hydroxide (i) Potassium permanganate (j) Potassium DICHROMATE (K) Aluminium Hydroxide (l) Magnesium nitride (m) Sodium zincate (N) Copper [[II]] OXIDE (o) Copper [[I]] sulphide (p) Iron [[III]] chloride (q) Iron [[II]] hydroxide (r) Iron [[III]] sulphide (s) Iron [[III]] oxide Explanation:* Happy army day. please let me know if this helped!!

570.

now write the formula of following compounds : calcium carbonate ,zinc sulphate ,aluminium sulphate , silver chloride ,sodium carbonate ,potassium hydrogen carbonate, iron sulphate ,copper sulphate

Answer»

Answer:

Good morning.

Q8) WRITE the chemical formula of the following compounds in a step by step manner -

(a) Potassium Chloride

(b) Sodium Bromide

(c) Potassium Nitrate

(d) Calcium Hydroxide

(e) Calcium Bicarbonate

(f) Sodium Bisulphate

(g) Potassium sulphate

(h) Zinc Hydroxide

(i) Potassium permanganate

(j) Potassium DICHROMATE

(K) Aluminium Hydroxide

(l) Magnesium nitride

(m) Sodium zincate

(N) Copper [[II]] OXIDE

(o) Copper [[I]] sulphide

(p) Iron [[III]] chloride

(q) Iron [[II]] hydroxide

(r) Iron [[III]] sulphide

(s) Iron [[III]] oxide

Explanation:

Happy army day.

please let me know if this helped!!

Discussion

571.	In the reaction 4Na + O2--> 2Na2OSingle choice. (1 Point)1.Na is getting reduced, oxygen is getting oxidised2.Oxygen is getting reduced, Na is oxideised3.Na is reduced4.Oxygen is oxidised
Answer» Answer: 4Na + O2 - 2Na2O 2) NA is GETTING oxidised

571.

In the reaction 4Na + O2--> 2Na2OSingle choice. (1 Point)1.Na is getting reduced, oxygen is getting oxidised2.Oxygen is getting reduced, Na is oxideised3.Na is reduced4.Oxygen is oxidised

Answer»

Answer:

4Na + O2 - 2Na2O

2) NA is GETTING oxidised

Discussion

572.	____N2 + H2____NH3.
Answer» EXPLANATION: N2 + 3H2 ----› 2NH3 THIS IS CALLED AS HAYBERS PROCESS

572.

N2 + H2NH3.

Answer»

EXPLANATION:

N2 + 3H2 ----› 2NH3

THIS IS CALLED AS HAYBERS PROCESS

Discussion

573.	What is meant by diffusion?
Answer» Answer: Diffusion is the MOVEMENT of a substance from an area of high CONCENTRATION to an area of LOW concentration. Diffusion happens in liquids and gases because their particles move randomly from place to place. Diffusion is an IMPORTANT process for LIVING things; it is how substances move in and out of cells. Explanation: I hope it's helpful for you ☺️

573.

What is meant by diffusion?

Answer»

Answer:

Diffusion is the MOVEMENT of a substance from an area of high CONCENTRATION to an area of LOW concentration. Diffusion happens in liquids and gases because their particles move randomly from place to place. Diffusion is an IMPORTANT process for LIVING things; it is how substances move in and out of cells.

Explanation:

I hope it's helpful for you ☺️

Discussion

574.	Solution showing (+) ve deviation from Raoult’s law include:(a) acetone + CS2(b) acetone + C2H5OH(c) acetone + Benzene(d) acetone + aniline
Answer» ANSWER: Acetone+ Aniline is SHOWING (+)ve deviation from RAOULT's LAW

574.

Solution showing (+) ve deviation from Raoult’s law include:(a) acetone + CS2(b) acetone + C2H5OH(c) acetone + Benzene(d) acetone + aniline

Answer»

ANSWER:

Acetone+ Aniline is SHOWING (+)ve deviation from RAOULT's LAW

Discussion

575.	Changing from one state of matter to another is a ________ change.chemicalphysicalnuclearnone please give me fast
Answer» ANSWER: physical. Explanation:

575.

Changing from one state of matter to another is a ________ change.chemicalphysicalnuclearnone please give me fast

Answer»

ANSWER:

physical.

Explanation:

Discussion

576.	A property of transmission of electricity
Answer» Answer: Here's your answer Explanation: ELECTRIC power TRANSMISSION is the bulk movement of ELECTRICAL energy from a GENERATING site, such as a power plant, to an electrical substation. ... This is distinct from the local WIRING between high-voltage substations and customers, which is typically referred to as electric power distribution. Hope it helps Pls mark me the brainliest

576.

A property of transmission of electricity

Answer»

Answer:

Here's your answer

Explanation:

ELECTRIC power TRANSMISSION is the bulk movement of ELECTRICAL energy from a GENERATING site, such as a power plant, to an electrical substation. ... This is distinct from the local WIRING between high-voltage substations and customers, which is typically referred to as electric power distribution.

Hope it helps

Pls mark me the brainliest

Discussion

577.	Plz ans this question
Answer» ANSWER: Q1 1. valency Q1 2. don't KNOW Q2 1. don't know Q3 1dont know

577.

Plz ans this question

Answer»

ANSWER:

Q1 1. valency

Q1 2. don't KNOW

Q2 1. don't know

Q3 1dont know

Discussion

578.	In the refining of silver by electrolytic method, current of 5A is passed for 2 h using 100 g of impure anode of silver (of 95% purity). Weight of silver anode after electrolysis issearch text in yt solution
Answer» Explanation: In the REFINING of SILVER by electrolytic method, current of 5A is passed for 2 h using 100 G of IMPURE anode of silver (of 95% purity). Weight of silver anode after ELECTROLYSIS is. 40.29 g

578.

In the refining of silver by electrolytic method, current of 5A is passed for 2 h using 100 g of impure anode of silver (of 95% purity). Weight of silver anode after electrolysis issearch text in yt solution

Answer»

Explanation:

In the REFINING of SILVER by electrolytic method, current of 5A is passed for 2 h using 100 G of IMPURE anode of silver (of 95% purity). Weight of silver anode after ELECTROLYSIS is. 40.29 g

Discussion

579.	Pls don't spam and answer the questions
Answer» ANSWER: HALOGENS,FLUORINE ,ISOBARS

579.

Pls don't spam and answer the questions

Answer»

ANSWER:

HALOGENS,FLUORINE ,ISOBARS

Discussion

580.	Please solve thisIn Allylic alcohol the -OH group is attached to a -sp2 hybridized carbon next to carbon carbon double bondsp3 hybridized carbon next to the Carbon carbon double bondsp3d2 hybridized carbon next to carbon carbon triple bondsp2 hybridized carbon next to carbon carbon triple bondplease help
Answer» ANSWER: ok BRO I don't know sorry bro or SIS who ASKED this QUESTION

580.

Please solve thisIn Allylic alcohol the -OH group is attached to a -sp2 hybridized carbon next to carbon carbon double bondsp3 hybridized carbon next to the Carbon carbon double bondsp3d2 hybridized carbon next to carbon carbon triple bondsp2 hybridized carbon next to carbon carbon triple bondplease help

Answer»

ANSWER:

ok BRO I don't know sorry bro or SIS who ASKED this QUESTION

Discussion

581.	In the event of an electrical accident, a solution of rare HSO is taken and electricity is passed through it.
Answer» FIRST aid for ELECTRICAL shock INCLUDES: Check for a PERSON's response and breathing. It may be necessary to commence CARDIOPULMONARY resuscitation (CPR). Call triple zero (000) for an ambulance. ... If their breathing is steady and they are responsive, attend to their injuries. ... Talk calmly and reassuringly to the person. Explanation: Hope it helps u☺. mark me as brainliest.

581.

In the event of an electrical accident, a solution of rare HSO is taken and electricity is passed through it.

Answer»

FIRST aid for ELECTRICAL shock INCLUDES:

Check for a PERSON's response and breathing. It may be necessary to commence CARDIOPULMONARY resuscitation (CPR).

Call triple zero (000) for an ambulance. ...

If their breathing is steady and they are responsive, attend to their injuries. ...

Talk calmly and reassuringly to the person.

Explanation:

Hope it helps u☺.

mark me as brainliest.

Discussion

582.	Write write a activity 1.5 class ninth with aim procedure?
Answer» Answer: Procedure:- Activity 1.5 asks us to put copper sulphate in hot WATER and cold water respectively and, observe the time it takes to dissolve. Observation:- Copper sulphate in hot water diffuses FAST and dissolves faster than in a beaker containing cold water. Explanation:- All substances have some kinetic energy in it. When we heat a substance its kinetic energy increases. Heating water results in an increase in its kinetic energy, as a result, we see that copper sulphate crystal dissolves in much LESSER time. Inference:- This experiment proves that heating increases the diffusion rate of a substance. Application:- You can apply this RULE on many objects. Sugar in cold water takes more time to dissolve, while in hot water it dissolves in no time. You can apply this rule on many objects. Sugar in cold water takes more time to dissolve, while in hot water it dissolves in no time.Increase in kinetic energy changes the physical state of a substance. For example, heating copper to around 1100°C can make it liquid. A coppersmith UTILIZES this property to make a statue. He puts liquid copper into a mould and a statute forms. Hope it helps you... Pls mrk me brainliest...

582.

Write write a activity 1.5 class ninth with aim procedure?

Answer»

Answer:

Procedure:-

Activity 1.5 asks us to put copper sulphate in hot WATER and cold water respectively and, observe the time it takes to dissolve.

Observation:-

Copper sulphate in hot water diffuses FAST and dissolves faster than in a beaker containing cold water.

Explanation:-

All substances have some kinetic energy in it. When we heat a substance its kinetic energy increases. Heating water results in an increase in its kinetic energy, as a result, we see that copper sulphate crystal dissolves in much LESSER time.

Inference:-

This experiment proves that heating increases the diffusion rate of a substance.

Application:-

You can apply this RULE on many objects. Sugar in cold water takes more time to dissolve, while in hot water it dissolves in no time.

You can apply this rule on many objects. Sugar in cold water takes more time to dissolve, while in hot water it dissolves in no time.Increase in kinetic energy changes the physical state of a substance. For example, heating copper to around 1100°C can make it liquid. A coppersmith UTILIZES this property to make a statue. He puts liquid copper into a mould and a statute forms.

Hope it helps you...

Pls mrk me brainliest...

Discussion

583.	A fabric is made by weaving together
Answer» ★᭄ꦿ᭄Answer★᭄ꦿ᭄ Weaving is a method of textile production in which two distinct sets of yarns or threads are interlaced at right angles to form a FABRIC or CLOTH. The way the warp and FILLING threads interlace with each other is called the WEAVE.

583.

A fabric is made by weaving together

Answer»

★᭄ꦿ᭄Answer★᭄ꦿ᭄

Weaving is a method of textile production in which two distinct sets of yarns or threads are interlaced at right angles to form a FABRIC or CLOTH. The way the warp and FILLING threads interlace with each other is called the WEAVE.

Discussion

584.	) The law which states that 200 g of reactants will produce exactly 200 g of products. ii) The type of change in which energy is released in the form of heat. v) The temperature at which a liquid starts boiling.
Answer» Answer: 1)The law of conservation of MASS was created in 1789 by a French chemist, Antoine Lavoisier. The law of conservation of mass states that matter cannot be created or destroyed in a chemical reaction. 2) Exothermic reactions release heat and LIGHT into their surroundings. For example, combustion reactions are usually exothermic. 5)The boiling point of a liquid varies according to the applied pressure; the normal boiling point is the temperature at which the vapour pressure is EQUAL to the standard sea-level atmospheric pressure (760 mm [29.92 inches] of mercury). At sea level, water boils at 100° C (212° F). EXPLANATION: hope it helps , PLEASE mark me as brainliest

584.

) The law which states that 200 g of reactants will produce exactly 200 g of products. ii) The type of change in which energy is released in the form of heat. v) The temperature at which a liquid starts boiling.

Answer»

Answer:

1)The law of conservation of MASS was created in 1789 by a French chemist, Antoine Lavoisier. The law of conservation of mass states that matter cannot be created or destroyed in a chemical reaction.

2) Exothermic reactions release heat and LIGHT into their surroundings. For example, combustion reactions are usually exothermic.

5)The boiling point of a liquid varies according to the applied pressure; the normal boiling point is the temperature at which the vapour pressure is EQUAL to the standard sea-level atmospheric pressure (760 mm [29.92 inches] of mercury). At sea level, water boils at 100° C (212° F).

EXPLANATION:

hope it helps , PLEASE mark me as brainliest

Discussion

585.	Write the symbol and valency of sodium silver chloride oxide sulphide calcium
Answer» ANSWER *potassium* *sodium* *hydrogen* *calcium* *aluminium* *magnlsium* *zinc* *chlorine* *selphur* *nitrogen* *oxygen* *ammonium* *bicarbonate* *nitrate* *bisulphate* *HYDROXIDE* *bisulphite* *carbonate* *sulphate* *sulph*ite

585.

Write the symbol and valency of sodium silver chloride oxide sulphide calcium

Answer»

ANSWER

potassium
sodium
hydrogen
calcium
aluminium
magnlsium
zinc
chlorine
selphur
nitrogen
oxygen
ammonium
bicarbonate
nitrate
bisulphate
HYDROXIDE
bisulphite
carbonate
sulphate
sulphite

Discussion

586.	Why is helium gas is used in hot air balloon?
Answer» Answer: While hot air balloons rely on on BOARD burners to HEAT up air in ORDER to generate lift, gas balloons are FILLED with a gas (helium or HYDROGEN) that is lighter than air, therefore providing lift. ...

586.

Why is helium gas is used in hot air balloon?

Answer»

Answer:

While hot air balloons rely on on BOARD burners to HEAT up air in ORDER to generate lift, gas balloons are FILLED with a gas (helium or HYDROGEN) that is lighter than air, therefore providing lift. ...

Discussion

587.	Express the following in the scientific notation 523.0
Answer» Explanation: 523.0 SCIENTIFIC MEANS 10 . 523.0*10= 5230.0 your ANSWER

587.

Express the following in the scientific notation 523.0

Answer»

Explanation:

523.0 SCIENTIFIC MEANS 10 .

523.0*10= 5230.0 your ANSWER

Discussion

588.	1.00 mole of an ideal gas occupies a volume of 22.4 L at 0 °C and 760 mmHg (STP). It is cooled to -41°C while the pressure is increased to 805 mmHg. What is the new volume of the gas in liters?
Answer» Answer: 655701 Explanation: yeggecc ANS REGARDS BRO

588.

1.00 mole of an ideal gas occupies a volume of 22.4 L at 0 °C and 760 mmHg (STP). It is cooled to -41°C while the pressure is increased to 805 mmHg. What is the new volume of the gas in liters?

Answer»

Answer:

655701

Explanation:

yeggecc
ANS REGARDS BRO

Discussion

589.	How many moles of N2 are needed to react with 5.8 mole H₂O?
Answer» ANSWER: 4.2 MOLES is the answer PLEASE MARK my answer as BRANLIEST

589.

How many moles of N2 are needed to react with 5.8 mole H₂O?

Answer»

ANSWER:

4.2 MOLES is the answer PLEASE MARK my answer as BRANLIEST

Discussion

590.	Which gas is most suitable to be filled in a hot air balloon, helium or hydrogen?
Answer» Answer: HYDROGEN and HELIUM are the most commonly USED LIFT GASES. Although helium is twice as heavy as (diatomic) hydrogen, they are both significantly lighter than air, making this difference negligible Please brainlest me the answer

590.

Which gas is most suitable to be filled in a hot air balloon, helium or hydrogen?

Answer»

Answer:

HYDROGEN and HELIUM are the most commonly USED LIFT GASES. Although helium is twice as heavy as (diatomic) hydrogen, they are both significantly lighter than air, making this difference negligible

Please brainlest me the answer

Discussion

591.	Write the formula for magnesium oxide
Answer» EXPLANATION: MgO IUPAC ID: MAGNESIUM oxide Molar mass: 40.3044 g/mol Soluble in: ACID, AMMONIA

591.

Write the formula for magnesium oxide

Answer»

EXPLANATION:

MgO

IUPAC ID: MAGNESIUM oxide

Molar mass: 40.3044 g/mol

Soluble in: ACID, AMMONIA

Discussion

592.	Important questions of chapter acids , bases and salts class 10no spam
Answer» Explanation: 1.Name the acid present in the following: (i) Tomato (ii) VINEGAR (iii) Tamarind Answer. (i) Oxalic acid (ii) Acetic acid (iii) Tartaric acid 2.15 mL of water and 10 mL of SULPHURIC acid are to be MIXED in a beaker (i) State the method that should be followed with reason. (ii)What is this process called? Answer. (i) The acid is to be ADDED slowly in water to prevent the mixture to be splashed. The reaction is highly exothermic, therefore, constant cooling should be done. (ii)The process is called dilution. 3. Explain how antacid works. Answer. Hyperacidity is caused by excess of hydrochloric acid in stomach. Antacid is basic in nature. It neutralizes excess of acid and gives relief from pain caused by hyperacidity. hope it will help you

592.

Important questions of chapter acids , bases and salts class 10no spam

Answer»

Explanation:

1.Name the acid present in the following:

(i) Tomato (ii) VINEGAR (iii) Tamarind

Answer. (i) Oxalic acid (ii) Acetic acid (iii) Tartaric acid

2.15 mL of water and 10 mL of SULPHURIC acid are to be MIXED in a beaker

(i) State the method that should be followed with reason.

(ii)What is this process called?

Answer.

(i) The acid is to be ADDED slowly in water to prevent the mixture to be splashed. The

reaction is highly exothermic, therefore, constant cooling should be done.

(ii)The process is called dilution.

3. Explain how antacid works.

Answer. Hyperacidity is caused by excess of hydrochloric acid in stomach. Antacid is basic in nature. It neutralizes excess of acid and gives relief from pain caused by hyperacidity.

hope it will help you

Discussion

593.	Predict the products of the following reaction CH3CH2CH2 o CH3+HBr
Answer» ANSWER: CH3CH2CH2OCH3 + HBR → CH3CH2CH2OH + CH3BR

593.

Predict the products of the following reaction CH3CH2CH2 o CH3+HBr

Answer»

ANSWER:

CH3CH2CH2OCH3 + HBR → CH3CH2CH2OH + CH3BR

Discussion

594.	Enlist four examples of solid and gases each .(long answer )
Answer» Answer: Giving EXAMPLES of solids, liquids, GASES, and plasma is a COMMON homework assignment in CHEMISTRY, physics, and physical science classes. ... Examples of gases include: Air. Natural gas. Hydrogen. Carbon dioxide. Water vapor. Freon. Ozone. Nitrogen.

594.

Enlist four examples of solid and gases each .(long answer )

Answer»

Answer:

Giving EXAMPLES of solids, liquids, GASES, and plasma is a COMMON homework assignment in CHEMISTRY, physics, and physical science classes.

...

Examples of gases include:

Air.

Natural gas.

Hydrogen.

Carbon dioxide.

Water vapor.

Freon.

Ozone.

Nitrogen.

Discussion

595.	2).steel contains- (a) Fe+C+Mn (b) Fe+Mn+Cr (c) Fe+Mn (d) Fe+Mn+Ni
Answer» Explanation: Steel is an alloy of iron and carbon containing less than 2% carbon and 1% manganese and small amounts of SILICON, phosphorus, SULPHUR and OXYGEN. Steel is the world's most important ENGINEERING and construction material.

595.

2).steel contains- (a) Fe+C+Mn (b) Fe+Mn+Cr (c) Fe+Mn (d) Fe+Mn+Ni

Answer»

Explanation:

Steel is an alloy of iron and carbon containing less than 2% carbon and 1% manganese and small amounts of SILICON, phosphorus, SULPHUR and OXYGEN. Steel is the world's most important ENGINEERING and construction material.

Discussion

596.	Organic compound compound are poor Conductor of electricity why
Answer» Answer: CARBON COMPOUNDS are poor electrical conductors because they form covalent bonds, and they do not GIVE rise to free electrons because all electrons are used to CREATE the covalent bond. Also carbon COMPOUND does not dissociate itself into ions, so carbon compounds are poor electrical conductors.

596.

Organic compound compound are poor Conductor of electricity why

Answer»

Answer:

CARBON COMPOUNDS are poor electrical conductors because they form covalent bonds, and they do not GIVE rise to free electrons because all electrons are used to CREATE the covalent bond. Also carbon COMPOUND does not dissociate itself into ions, so carbon compounds are poor electrical conductors.

Discussion

597.	Nucleus was discovered in?
Answer» ANSWER: Ernest Rutherford discovered the NUCLEUS in 1911 Explanation: hope it helps you please MARK me as brainlist

597.

Nucleus was discovered in?

Answer»

ANSWER:

Ernest Rutherford discovered the NUCLEUS in 1911

Explanation:

hope it helps you

please MARK me as brainlist

Discussion

598.	Which of the following plastics is use for making electric switches ?a)PET b)Melamine. c)Bakelite. d) teflon
Answer» Answer: Bakelite Bakelite is used for making electrical switches because it is a POOR CONDUCTOR of HEAT and electricity Explanation: HOPE help u

598.

Which of the following plastics is use for making electric switches ?a)PET b)Melamine. c)Bakelite. d) teflon

Answer»

Answer:

Bakelite

Bakelite is used for making electrical switches because it is a POOR CONDUCTOR of HEAT and electricity

Explanation:

HOPE help u

Discussion

599.	Name the inert gas elements
Answer» Answer: GROUP 8A (or VIIIA) of the periodic table are the noble gases or INERT gases: helium (He), neon (Ne), ARGON (Ar), KRYPTON (Kr), xenon (Xe), and radon (Rn). The name COMES from the fact that these elements are virtually unreactive towards other elements or compounds

599.

Name the inert gas elements

Answer»

Answer:

GROUP 8A (or VIIIA) of the periodic table are the noble gases or INERT gases: helium (He), neon (Ne), ARGON (Ar), KRYPTON (Kr), xenon (Xe), and radon (Rn). The name COMES from the fact that these elements are virtually unreactive towards other elements or compounds

Discussion

600.	In the reaction, 2 Cu+ --> Cu + Cu2+, the equivalent weight of Cu+ is (M is the mol. wt. of Cu+ )
Answer» ANSWER: i5a5ustja Tsutstk6s5syiy 4TH a4iu3au4w4wiie36qr8w

600.

In the reaction, 2 Cu+ --> Cu + Cu2+, the equivalent weight of Cu+ is (M is the mol. wt. of Cu+ )

Answer»

ANSWER:

i5a5ustja

Tsutstk6s5syiy 4TH a4iu3au4w4wiie36qr8w

Discussion

Explore topic-wise InterviewSolutions in .

To indicate the presence of a gaseous reactant or product, we use the symbol (i) (Product) g or (Reactant) g(ii) (Product) ⬇️ or (Reactant) ⬆(iii) (Product) ⬇️ or (Reactant) ⬆(iv) (Product) ⬆ or (Reactant) ⬇️​

Explain structural isomerism in co-ordination compound.​

5. Which one of the following statement is incorrect? a. Hydrogen is an element. b. All elements are solid at room temperature. c. The element mercury is liquid at room temperature. d. Beryllium contains only one type of atom.​

If you mix a frog and a toad together what do you get?

Which noble gas element has an electronic configuration like that of Li+​

Which one of the following statement is incorrect?a. Hydrogen is an element.b. All elements are solid at room temperature.c. The element mercury is liquid at room temperature.d. Beryllium contains only one type of atom

A molecule which breaks and give Hydrogen and Oxygen is a. Carbon dioxide b. Ammonia c. Water d. Methane​

The compound that has greater rate of diffusion among C2 H 6 , C3 H 6 , CH 4and C 4 H10 at normal temperature and pressure is​

Can I get correct answer here . pls don't spam I will report it​

Chemistry question can any one answer it ?​

Define polymer . give it's classification on basis of structure.​

What is molecular mass??Good morning all my friendsdon't spam f ree point​

What is the organic search come​

What is the diferences between CuO and Cu2O?

2. Which one of the following elements is not a metal? a. Sodium b. Nitrogen c. Magnesium d. Lithium​

Chemistry Assignmentmultiple choice Question lolto the quantity of malter present in an objects Escalled its2- which of the following is lare rigid (s)?mans3 which of the following state ments ů / are correct:​

Classify the following substances as one/two/ there acidic/acidic. HCL, HSO4 , HNO3, H,BO.H.Ca(oH)2, PO NaOH,Fe (OH)3​

Which of the following is correct for N-³ * a) e=p=n=10 b) e=7 p=10 n = 7 c) e=10 p=7 n=7. very urgent please​

Which has stable electronic configuration ?Ni 2 +or Fe 3 + explain​

now write the formula of following compounds : calcium carbonate ,zinc sulphate ,aluminium sulphate , silver chloride ,sodium carbonate ,potassium hydrogen carbonate, iron sulphate ,copper sulphate​

In the reaction 4Na + O2--> 2Na2OSingle choice. (1 Point)1.Na is getting reduced, oxygen is getting oxidised2.Oxygen is getting reduced, Na is oxideised3.Na is reduced4.Oxygen is oxidised

4Na + O2 - 2Na2O

____N2 + H2____NH3. ​

What is meant by diffusion?​

I hope it's helpful for you ☺️

Solution showing (+) ve deviation from Raoult’s law include:(a) acetone + CS2(b) acetone + C2H5OH(c) acetone + Benzene(d) acetone + aniline

Changing from one state of matter to another is a ________ change.chemicalphysicalnuclearnone please give me fast​

A property of transmission of electricity

Plz ans this question

In the refining of silver by electrolytic method, current of 5A is passed for 2 h using 100 g of impure anode of silver (of 95% purity). Weight of silver anode after electrolysis issearch text in yt solution​

Pls don't spam and answer the questions​

In the event of an electrical accident, a solution of rare HSO is taken and electricity is passed through it.​

Hope it helps u☺.

mark me as brainliest.

Write write a activity 1.5 class ninth with aim procedure?​

A fabric is made by weaving together​

) The law which states that 200 g of reactants will produce exactly 200 g of products. ii) The type of change in which energy is released in the form of heat. v) The temperature at which a liquid starts boiling.​

Write the symbol and valency of sodium silver chloride oxide sulphide calcium​

Why is helium gas is used in hot air balloon?

Express the following in the scientific notation 523.0​

1.00 mole of an ideal gas occupies a volume of 22.4 L at 0 °C and 760 mmHg (STP). It is cooled to -41°C while the pressure is increased to 805 mmHg. What is the new volume of the gas in liters?

How many moles of N2 are needed to react with 5.8 mole H₂O?​

Which gas is most suitable to be filled in a hot air balloon, helium or hydrogen?

Write the formula for magnesium oxide​

Important questions of chapter acids , bases and salts class 10no spam​

Predict the products of the following reaction CH3CH2CH2 o CH3+HBr​

Enlist four examples of solid and gases each .(long answer )​

2).steel contains- (a) Fe+C+Mn (b) Fe+Mn+Cr (c) Fe+Mn (d) Fe+Mn+Ni​

Organic compound compound are poor Conductor of electricity why​

Nucleus was discovered in?​

Which of the following plastics is use for making electric switches ?a)PET b)Melamine. c)Bakelite. d) teflon​

Bakelite

Name the inert gas elements​

In the reaction, 2 Cu+ --> Cu + Cu2+, the equivalent weight of Cu+ is (M is the mol. wt. of Cu+ )​

To indicate the presence of a gaseous reactant or product, we use the symbol (i) (Product) g or (Reactant) g(ii) (Product) ⬇️ or (Reactant) ⬆(iii) (Product) ⬇️ or (Reactant) ⬆(iv) (Product) ⬆ or (Reactant) ⬇️

Explain structural isomerism in co-ordination compound.

5. Which one of the following statement is incorrect? a. Hydrogen is an element. b. All elements are solid at room temperature. c. The element mercury is liquid at room temperature. d. Beryllium contains only one type of atom.

Which noble gas element has an electronic configuration like that of Li+

A molecule which breaks and give Hydrogen and Oxygen is a. Carbon dioxide b. Ammonia c. Water d. Methane

The compound that has greater rate of diffusion among C2 H 6 , C3 H 6 , CH 4and C 4 H10 at normal temperature and pressure is

Can I get correct answer here . pls don't spam I will report it

Chemistry question can any one answer it ?

Define polymer . give it's classification on basis of structure.

What is molecular mass??Good morning all my friendsdon't spam f ree point

What is the organic search come

2. Which one of the following elements is not a metal? a. Sodium b. Nitrogen c. Magnesium d. Lithium

Chemistry Assignmentmultiple choice Question lolto the quantity of malter present in an objects Escalled its2- which of the following is lare rigid (s)?mans3 which of the following state ments ů / are correct:

Classify the following substances as one/two/ there acidic/acidic. HCL, HSO4 , HNO3, H,BO.H.Ca(oH)2, PO NaOH,Fe (OH)3

Which of the following is correct for N-³ * a) e=p=n=10 b) e=7 p=10 n = 7 c) e=10 p=7 n=7. very urgent please

Which has stable electronic configuration ?Ni 2 +or Fe 3 + explain

now write the formula of following compounds : calcium carbonate ,zinc sulphate ,aluminium sulphate , silver chloride ,sodium carbonate ,potassium hydrogen carbonate, iron sulphate ,copper sulphate

N2 + H2NH3.

What is meant by diffusion?

Changing from one state of matter to another is a ________ change.chemicalphysicalnuclearnone please give me fast

In the refining of silver by electrolytic method, current of 5A is passed for 2 h using 100 g of impure anode of silver (of 95% purity). Weight of silver anode after electrolysis issearch text in yt solution

Pls don't spam and answer the questions

In the event of an electrical accident, a solution of rare HSO is taken and electricity is passed through it.

Write write a activity 1.5 class ninth with aim procedure?

A fabric is made by weaving together

) The law which states that 200 g of reactants will produce exactly 200 g of products. ii) The type of change in which energy is released in the form of heat. v) The temperature at which a liquid starts boiling.

Write the symbol and valency of sodium silver chloride oxide sulphide calcium

Express the following in the scientific notation 523.0

How many moles of N2 are needed to react with 5.8 mole H₂O?

Write the formula for magnesium oxide

Important questions of chapter acids , bases and salts class 10no spam

Predict the products of the following reaction CH3CH2CH2 o CH3+HBr

Enlist four examples of solid and gases each .(long answer )

2).steel contains- (a) Fe+C+Mn (b) Fe+Mn+Cr (c) Fe+Mn (d) Fe+Mn+Ni

Organic compound compound are poor Conductor of electricity why

Nucleus was discovered in?

Which of the following plastics is use for making electric switches ?a)PET b)Melamine. c)Bakelite. d) teflon

Name the inert gas elements

In the reaction, 2 Cu+ --> Cu + Cu2+, the equivalent weight of Cu+ is (M is the mol. wt. of Cu+ )