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901.

Why is equilibrium state attainable from either way

Answer»

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{\pmb{\mathbb{\text{\red{Equilibrium}}}}} STATE can be disturbed and REACTION adjust its forward and reverse RATE accordingly. ... {\pmb{\mathbb{\text{\red{Equilibrium}}}}} is itself a state when rate of forward reaction become equal to reverse reaction so reaction does not stop.

\bf{\pmb{\mathbb{\fbox{\red{Hope it's help you}}}}}

902.

in electrolysis why we dipped electrodes in electrolyte solution partly not fully??what will happen if we dipped the electrodes fully into the solution??​

Answer»

EXPLANATION:

HOPE it HELPS!!!

if it ; MARK!

903.

A solution of Glucose Of C6 H12 O6 in H2O Given:10gm of Glucose dissolved in H2O and the solution is made to 100cm3 in a volumetric flask. Calculate Molarlity of the solution ?​

Answer»

Molalityof a solution is defined as the number of moles of solute dissolved per kg of SOLVENT.

C H O

6 12 6

= 10\% \: by \: <klux>WEIGHT</klux>

THUS in 100 G solution mass of glucose = 10 g and of water =90 g

Number of moles of glucose =

mass/molar mass

n= 10/ 180= 1/18 mol

Mass of solvent = 90 g= 0.09 kg

Molality, m= (1/18) / 0.09

m= 100/18×9=0.617 molal≈0.6 molal

The molality of a solution of glucose (C H O )

6 12 6

in water is labelled as 10% by weight is 0.617 molal.

904.

Write scientific reasons Sodium is a compound..​

Answer»

EXPLANATION:

The chemical abbreviation for sodium was first PUBLISHED in 1814 by Jöns Jakob Berzelius in his system of atomic symbols, and is an abbreviation of the element's New LATIN name natrium, which refers to the Egyptian natron, a natural mineral salt mainly consisting of HYDRATED sodium carbonate.

hope it helps you out.

905.

The simplest formula of a compound containing 50% of element X (atomic mass = 10) and 50% of the element Y (atomic mass = 20) by weight is :

Answer»

ANSWER:

X_{2}Y is UR answer

906.

लिस्ट फाइव थिंग्स दैट यू कैन डू टू हेल्प प्रीवेंटिंग an energy crisis.​

Answer»

ANSWER:

qwertyuiopasdfghjklzxcvbnm

907.

त्रिक बिंदु पर संक्षिप्त टिप्पणी​

Answer»

ANSWER:

त्रिगुण बिंदु (triple POINT) वो तापमान है जिस पर जल अपनी तीनो रूपों में मौजूद होता है अर्थात बर्फ़, पानी और जलवाष्प। यह तापमान 0.01°C (273.16K), 0.006 ATM PRESSURE पे होता है। धरती की सतह का वतावरणिय दबाव 1 atm होता है, इस वजह से यह बिंदु आम तौर पर देखने को नहीं मिलता।

908.

Which alkaline earth metals does not form peroxide (if any)(Dont copy paste from previous answers, and re-check your answer before sending)

Answer»

BERYLLIUM does not FORM peroxides due to its very small size and high POLARIZING POWER of Be2+ cation.

please mark me BRAIN mark list

909.

What is syllabus of chemistry class 10th

Answer»
  • Chemical reactions and equations

Chemical reaction

Chemical equation

Types of chemical reaction I

Types of chemical reaction II

Corrosion, rusting and rancidity

Types of compounds acids II

Types of compounds acids

Types of compounds bases

Strength of acids and bases

pH scale

Indicators for TESTING acids and bases

Salts

Common salt

Sodium hydroxide

Washing soda

Baking soda

Bleaching powder

Plaster of paris

Hydrated salts

Baking powder

  • Metals and non-metals

Physical properties of metals and non-metals

Chemical properties of metals

Chemical properties of non-metals

Difference between metals and non-metals

Reactivity series of metals

Uses of metals and non-metals

Ionic compounds and covalent compounds

Occurence of metal II

Occurence of metal

Corrosion and rusting

Alloys

  • Carbon and its compound

Carbon

Anomalous behaviour of carbon

Allotropes of carbon

Hydrocarbons

Hydrocarbons

Functional groups

Carbon compounds

Ethanol

Acetic acid

Soaps and detergents

  • Periodic table

Early ATTEMPTS at the classification of elements

Early attempts at the classification of elements Mendeleeve’s periodic table

Present BASIS for the classification of elements modern periodic table

Periodic table trends based on the properties of elements

Characteristics of periods and groups

Merits of modern periodic table

910.

The charcoal culture experiment is better than water culture experiment because

Answer»

Answer:

If charcoal is used in hydroponics then these problems could be RECTIFIED because charcoal is inert material hence, it will not affect the nutrient CONCENTRATION of the CULTURE medium. Also it will provide physical SUPPORT to plants and charcoal HOLDS air, which will improve aeration in culture.

911.

Purpose of soiling Material into group isa) to study their properties b) conveniencec) both a & bd) namvenience​

Answer»

Explanation:

C) both a & B is the answer..

Hope its HELP..

912.

15.8 G of Ammonium and 55.6 G of Bromide available from the reaction then calculate the limiting reactant and mass of the albr3 produced​

Answer»

ANSWER:

qyueid

Explanation:

913.

Write balanced at aty each statement (a) Acid Hydrochloric acid gas (6) Acid + Carbonate Salt Water + Carbon dioxide (c) Acid sulphite Water + Sulphur​

Answer»

Answer:

a) MGCO

3

(s)+2HCl(aq)→MgCl

2

(aq)+CO

2

(G)+H

2

O(l)

b) 2NaOH(aq)+H

2

SO

4

(aq)→Na

2

SO

4

(aq)+2H

2

O(l)

914.

Number of particles in 0.5 mol of a substance is =?​

Answer»

ANSWER:

A MOLE is about 6.022 * 10^23 of anything. So HALF a mole of WATER molecules is 3.011 * 10^23 molecules of water. 0.5 x 6.022 x 10^23 molecules of water.

915.

2 Draw a neat diagram to show that all the three state of mattes have mass​

Answer»

ANSWER:

Hi

Explanation:

In which CLASS are you?

916.

The color of solution obtained when aldehyde reacts with ammonical silver nitrate is​

Answer»

Answer:

Aldehyde oxidizesto carboxylic ACID. Silver REDUCES into METAL gives silver mirror which means compound is Aldehyde. please mark it as BRAINLIEST.

917.

Anilin se asitamayit banakar prastut kare che ka que ka ans

Answer»

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the branch of science CONCERNED with the substances of which matter is COMPOSED, the INVESTIGATION of their properties and reactions, and the USE of such reactions to form NEW substances.

918.

Describe the types of reactions

Answer»

Answer:

The five basic TYPES of chemical reactions are COMBINATION, decomposition, single-replacement, double-replacement, and combustion. Analyzing the reactants and products of a GIVEN REACTION will allow you to place it into one of these categories. Some reactions will FIT into more than one category

919.

Geometry of (Nicl4) 2-is​

Answer»

The MOLECULE [PdCl4]2− is diamagnetic, which indicates a square planar geometry as all EIGHT d ELECTRONS are paired in the lower-energy orbitals. HOWEVER, [NiCl4]2− is also d8 but has two unpaired electrons, indicating a tetrahedral geometry.

hope it's helpful

920.

OK NOW PLS ANY MODERATOR OR ANY INTELLIGENT GUY PLS ANSWER KARDO ..I NEED IT URGENT​

Answer»

Question:

0₂ undergoes photochemical dissociation into one normal oxygen atom and one oxygen atom 1.967 V more energetic than normal. The dissociation of O, into two normal atom of oxygen REQUIRES 498 kdmol. What is the MAXIMUM wavelength EFFECTIVE for photo CHEMICAL dissociation of 0₂ ?

ㅤㅤㅤㅤㅤOR

O₂ undergoes photo chemical dissociation into 1 normal oxygen atom (0) and more energetic oxygen atom (0*). If O* has 1.967 eV more energy than O and normal dissociation energy of O, is 498 kJ mol-¹. What is the maximum wavelength effective for the Photo Chemical dissociation of O₂?

ANSWER:

★ \textbf{Dissociation energy = } 498 {  \text{ \: kj \: mol} }^{ - 1}

=  \frac{498 \times 100}{6.02 \times  {1 0}^{23} }  {\text{ \:J \: molecule } }^{ - 1}

= 8.27 \times  {10}^{ - 19} {\text{ \:J \: molecule } }^{ - 1}

★\text{Excitation energy to form O*}  = 1.967 \:  {\text{eV \: } \text{atom} }^{ - 1}

= 1.967 \times 1.602 \times  {10}^{ - 19}  \: \text{J}   \:  {\text{atom} }^{ - 1}

= 3.15 \times  {10}^{ - 19}   \: \text{J}   \:  {\text{atom} }^{ - 1}

\textbf{★Total Energy = } 8.27 \times  {10}^{ - 19}  + 3.15 \times  {10}^{ - 19} \text{J}

= 11.42 \times  {10}^{ - 19}\text{J}

∴E =  \frac{hc}{λ}

⇒λ =  \frac{hc}{E}  =  \frac{6.625 \times  {10}^{ - 34} \text{J}  \times 3 \times  {10}^{8} m}{11.42 \times  {10}^{ - 19} \text{J}}

= 174 \times  {10}^{ - 9} m = 174 \: nm

\\  \\  \\  \\ \sf \colorbox{lightgreen} {\red★ANSWER ᵇʸɴᴀᴡᴀʙ}

921.

Hहाइड्रोजन का एटॉमिक मास ​

Answer»

Answer:

1

Explanation:

is the ATOMIC MASS of HYDROGEN

922.

How did Otto Van Guericke test Aristotle's belief? Please don't send any rubbish or else I will report you

Answer»

Answer:

In 1663 he INVENTED the first ELECTRIC generator, which produced static electricity by applying friction against a REVOLVING ball of sulfur. In 1672 he discovered that the electricity THUS produced could cause the surface of the sulfur ball to glow; hence, he BECAME the first man to view electroluminescence.

923.

Distinguish solids, liquids and gases in a tabular form under the following characteristics:(a) Rigidity(b) Compressibility(c) Interparticle forces of attraction(d) Interparticle spaces(e) Kinetic energy of particlesPls don't spam....

Answer»

a)rigidity : solids are highly rigid , liquids are less rigid ,gases are not rigid

B) compressibility: solids do not compress , liquid almost NEGLIGIBLE , gases highly compressed .

c) interparticle forces of attraction : solid having strongest interparticle force , liquid having slightly weaker than in solids , and gases having weaker than liquid

d)interparticle spaces : solids - most closely packed ,liquid - less closely packed, gases - least closely packed

e) kinetic energy of particles: solids- minimum kinetic energy , liquid-bgreater than solid , gases have greatest kinetic energy.

mark me as BARINLIST

924.

[cocl2(en)2]^- write the geometrical isomers​

Answer»

Answer:

ok

Explanation:

of disp WISH RITUAL WORSHIP YAHOO realty welcome

925.

सात खण्डीय सेल किसे कहते है

Answer»

EXPLANATION:

द्रव क्रिस्टलों का एक और महत्त्वपूर्ण उपयोग इनसे सात खण्ड सेल का निर्माण किया जाता है। डिजिटल तंत्रों में अंकों का प्रदर्शन करने के लिए भी व्यापक रूप से उपयोग में लाई जाने वाली महत्त्वपूर्ण युक्ति है। इसमें सात खण्ड सेल का व्यापक उपयोग होता है। इन सेलों का उपयोग डिजिटल उपकरणों जैसे- कैलकुलेटर, डिजिटल घड़ियाँ, PH मीटर, पेट्रोल-डीजल के मीटर आदि में 0 से 9 तक के अंक को प्रदर्शन करने के लिए इस विधि / तकनीकी का उपयोग किया जाता है। नेमेटिक द्रव क्रिस्टलों से बने इन सैलों में a से G तक सात खण्ड होते हैं।

926.

What did Aristotle believe about a vaccum? Please don't send any rubbish or else I will report you

Answer»

Answer:

Aristotle famously claimed that nature abhors a vacuum. True, air does RUSH into the space from which air has been evacuated, but not because nature has feelings of any kind about the vacuum. A vacuum is the total absence of matter. In practice, a true vacuum does not EXIST EVEN in DEEP space.

927.

In the H2,Br2 and O2 molecule.Is there present bond moment ??​

Answer»

ANSWER:

intermolecular forces are PRESENT between DIATOMIC MOLECULES

928.

Which properties show physical nature of matter​

Answer»

Answer:

Physical Nature of Matter- Matter AROUND Us

Solid: Molecules are TIGHTLY PACKED. They are often hard and rigid.

Liquid: Molecules are LOOSELY packed as compared to that of a solid. They TAKE the shape of the container.

Gas: Molecules of gases are farther apart when compared to liquid molecules

929.

How many grams of KCl solid do I need to make 500ml of 8% KCl solution?

Answer»

40 grams is REQUIRED to make 500ml of 8% KCL SOLUTION

930.

Write the name of orbital when n=3 and l=1

Answer»

ANSWER:

orbit

Explanation:

931.

To reduce the volume of a gas of 200 ml at 20 degree celsius to room

Answer»

ANSWER:

HONESTY is a facet of moral character that connotes positive and virtuous ATTRIBUTES such as integrity, truthfulness, straightforwardness, including straightforwardness of conduct, ALONG with the absence of lying, cheating, theft, ETC

932.

Calculate the mass of a spherical object whoes radius is 3cm and density of the object is 2g

Answer»

MASS= VOLUME × density

so m = 56.57× 10^-9 KG

933.

Complete the following word question metal plus acid science

Answer»

Answer:

Hydrogen GAS is formed when METAL REACT with ACIDS

934.

E XERCISE 1. b. c. A. Multiple Choice Questions (MCQ) Which of the following is not a characteristic of physical change? formation of new substance reversible temporary d. change in physical properties 2. A physical change involves no change in energy b. energy is absorbed energy is released d. none of these 3. Which of the following is not a chemical change? photosynthesis b. digestion d. 4. Which of the following is a characteristic of chemical change? permanent b. no energy change d. composition does not change C. tearing a paper rusting of iron a. reversible C. 26​

Answer»

ANSWER:

1 st answer is d

2 answer is d

3 answer is DIGESTION

4 answer is B

935.

.. Calculate emf of the following cell at 25°C. Fe Fe+ (0.001M ) H (0.01M) H. (g)(ibar) Pt(s) E° (Fe- | Fe) = 0.44V, E° (H+ | H2 ) = 0.00V​

Answer»

ANSWER:

ok

Explanation:

PLEASE MAKE US brinnest

936.

In the reaction of Zn with HCl, 140.15 g of ZnCl2 was actually formed, although the theoretical yieldwas 143 g. What was the percent yield?

Answer»

Answer:

98%

Explanation:

percentage YIELD = ACTUAL yield divided by THEORETICAL yield multiply 100

Percentage Yield = 140.15/145 multiply 100

percentage Yield = 98%

937.

What is constant boiling mixture?​

Answer»

A constant BOILING mixture is one which boils without any change in its COMPOSITION.

Hope it HELPS :)

938.

What is stomata?please give me some thanks friends​

Answer»

STOMATA are TINY PORES PRESENT on the surface of the LEAVE.

939.

Word bank. plz answer the question if you know ​

Answer»

Answer:

61273vzvywizzhauwvsvsssvsbvvssvvvsdvvvd

940.

The mass by mass percentage of a solute 'X' in a solution of mass 250g is 6.24%. What is the mass of the solute 'X' in kilograms?​

Answer»

ínsta Pai MUJHE JYADA CONFUSION Hota HAI

-,-

\:  \:  \:  \:

941.

Calculate the no. of total atoms in 84 amu of nh3​

Answer»

Answer 4

Explanation:

The NUMBER of molecules in 34 G $N{H_3}$ is SHOWN below. In $N{H_3}$ molecule one nitrogen atom and three hydrogen atoms are PRESENT. So in 1 mol of $N{H_3}$ molecule, the total number of atoms present is 4.

942.

FeSO4+KMnO4+H2SO4 → Fe2(SO4)3+ K2SO4+MnSO4+ H2O

Answer»

REFER TO THE ATTACHMENT.

943.

What is the basic principle for the seperation of two immiscible liquid​

Answer»

Answer:

SEPARATION of TWO IMMISCIBLE LIQUIDS is based on difference the densities of the two liquids. The method is used for separating two immiscible liquids, such as oil and water.

944.

Please answer the attached questionit is from jee mains 2016 from ray opticsSPAMMERS WILL BE REPORTED​

Answer»

C(1.7)

Explanation:

because the ANSWER is 1.7 and it is GOOD to get questions like this if I am WRONG sorry

945.

10f of electricity is passed through the solution of silver nitrate coppersulphate

Answer»

Explanation:

An electric current is passed through silver nitrated solution using silver electrodes . 10. 79 g of silver QAS found to be deposited on the CATHODE FI the same amount of electricity is passed through COPPER sulphate solutin using copper electrodes

946.

Why Cesium (at.no.55) requires little energy to release its one electron present in the outermost shell? ​

Answer»

EXPLANATION:

(at.no.55) requires LITTLE energy to RELEASE its one ELECTRON present in the outermost shell

947.

state weather the following is a chemcal or physical change,also give one reason for your answers - Milk sours in hot and humid weather.

Answer»

Answer:

\AAAAAAA. i think

Explanation:

this will a chemical CHANGE because when the MILK turn into curd then cannot be turn as USUAL milk.

948.

The electronic configuration of an element is [Ar]4s1 find the group and period of this elem ent

Answer»

GROUP - 1st ; period - 4 th , the ELEMENT is potassium K

Explanation:

1st group elements i.e, alkaline metals haveone valency electron in their outer s ORBITAL S1 and the principal NUMBER n gives the period number i.e, 4 .... ns1 where n=4

949.

How many valence electrons are present in elements in the third period

Answer»

Answer:

The last ELEMENT in the third PERIOD is ARGON and there are 8 valence ELECTRONS

950.

A) Show with the help of a diagram how you would connect two resister in each case.B) calculate the strength of the total current in the circuit in each of two cases.

Answer»

ANSWER:

:

PLEASE CHECK the below ATTACHMENT