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Answer:

OPTION A is answer

Explanation:

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2-methyl PROPENE - d8 | C4H8 - PubChem.

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a compound of hydrogen and CARBON, such as any of those which are the chief components of PETROLEUM and natural GAS.

<STRONG>EXPLANATION:

KA is an acid dissociation constant, also known as the acid ionization constant. It describes the likelihood of the compounds and the ions to break apart from each other. As we already know, strong acids completely dissociate, whereas weak acids only PARTIALLY dissociate. A big Ka value will indicate that you are dealing with a very strong acid and that it will completely dissociate into ions. A small Ka will indicate that you are WORKING with a weak acid and that it will only

Answer:

USE the ideal gas EQUATION,

Here R is constant,

p1v1/T1=p2v2/T2

substitute the given values in the above equation.......

EXPLANATION:

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ANSWER:

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AL2(SO4)3 + 3BaCl2 ------> 2AlCl3 + 3BaSO4

correct

Answer:

The subject of chemical bonding is at the heart of chemistry. In 1916 Gilbert Newton Lewis (1875–1946) published his SEMINAL PAPER suggesting that a chemical bond is a pair of ELECTRONS SHARED by two atoms.

ʜᴏᴘᴇ ɪᴛ ʜᴇʟᴘs ᴜ ᴍᴀᴛᴇ

ANSWER:

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Answer:

ʜʏʙʀɪᴅɪᴢᴀᴛɪᴏɴ ɪs the PROCESS of an animal or plant breeding with an INDIVIDUAL of another SPECIES or variety.

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ANSWER:

OXALIC ACID

Oxalic acid is the WEAKEST acid.

Explanation:

1) 3-methyl pentacarbonyl chloride

2) 5-Iodo-4-nitro pentanal

_______more about the TOPIC:-

the IUPAC nomenclature of organic chemistry is a method of naming organic chemical compounds as recommended by the INTERNATIONAL Union of Pure and Applied Chemistry (IUPAC).

These non-systematic names are OFTEN derived from an original SOURCE of the compound.

ANSWER:

Metallic Character= Na, Mg, AL, Si, P, S, Cl

NON metallic Character= Cl, S, P, Si, Al, Mg, Na

Explanation:

In period metallic Character decrease as the all the ELEMENTS given above belong to same group therefore there metallic Character decrease while non metallic Character INCREASE in period.

ANSWER:

The NAMES and numbering SYSTEMS for the five-membered heteroaromatic rings with two HETEROATOMS are: Anthrapyrimidine yellow, flavanthrone yellow, indanthrone blue-reddish, and indanthrone blue are examples of heterocyclic anthraquinone dyes.

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Explanation:

ATOMIC mass is the is the sum of the ELECTRONS and the neutrons in the atom. NUMBER of electrons is the atomic number. Hence to determine the atomic mass the reference of the atom is required.

Example to FIND the atomic mass of atom magnesium Mg we need to know the atomic number of magnesium.

atomic number of magnesium atom is 12 = number of electrons

number of neutrons in the nucleus of magnesium atom is 12

the atomic mass of magnesium atom is 24 (sum of electrons and neutrons)

Answer:

3'-GCAATTC-5'

3'-GGCCAATTATGCCG-5'

Explanation:

Given -

• Chemical equation

To Do :-

• Balance the chemical equation

Solution :-

1)

When ALUMINIUM hydroxide reacts with HYDROCHLORIC acid then it forms Aluminium chloride and water.

Chemical equation :-

Al(OH)3 + 3HCl → AlCl3 + 3H2O

2)

When barium chloride reacts with sodium sulphate then it forms barium sulphate and sodium chloride.

Chemical equation :-

BaCl2 + Na2SO4 → BaSO4 + 2NaCl

3)

When LEAD nitrate is heated then it breaks down into lead oxide, nitrogen dioxide and oxygen gas.

Chemical equation :-

2Pb(NO3)2 → 2PbO + 4NO2 + O2

Additional information :-

Types of chemical reaction :-

• COMBINATION reaction -

Those reaction in which two or more substances combined to form a single substance, are called combination reaction.

Example -

C + O2 → CO2

• Decomposition reaction -

Those reaction in which a compound splits up into two or more simpler substances are known as decomposition reaction.

Example -

CaCO3 → CaO + CO2

• Displacement reaction -

Those reaction in which one element takes the place of another element in a compound, are known as Displacement reaction.

Example -

CuSO4 + Zn → ZnSO4 + Cu

• Double Displacement reaction -

Those reaction in which two compounds react by an exchange of ions to form two NEW compounds are called double displacement reaction.

Example -

AgNO3 + NaCl → AgCl + NaNO3

Answer:

M is bivalent metal MEANS it has valency 2. Beryllium, Magnesium, Calcium,Scandium, Barium, RADIUM are metals having valency 2.

To WRITE chemical formula of any compound the simplest method is criss cross method.

In this method

STEP 1: we will take Magnesium to form compound with sulphate.

Step 2: FIRST we should know the component of compound that are magnesium and sulphur. Step 3: Now we have to write the valency of both components that is of magnesium 2 as it is bivalent and of sulphur is 2 as it belongs to halogen family.

Step 4: Now we have to criss cross.

We get MgSO4

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EXPLANATION:

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Answer:

Non-living OBJECTS can be classified on the basis of the MATERIAL ( of which they are made), their uses, colour ,SHAPE ,size appearance, HARDNESS and texture

EXPLANATION:

brifbxtydhdbd. HH jdnjxos d d bhjdksm

ANSWER:

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Answer:

21.6+33.3+45.1

= 99.0

= 99

आप प्लीज अनुवाद दीजिए क्योंकि हमें कुछ भी नहीं पता क्वेश्चन देने के बाद हम आपको उत्तर देने में सहायता कर सकते हैं यह हमारा।

Explanation:

a) NITROGEN dioxide

b)decomposition resction

c) ph will be LESS than 7 (acidic)

hope it's correct

ANSWER:

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ANSWER:

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Explanation:

Butyronitrile or butanenitrile or propyl CYANIDE, is a NITRILE with the FORMULA C₃H₇CN. This colorless liquid is miscible with most polar organic solvents.

Formula: C4H7N

Molar mass: 69.11 g/mol

Boiling point: 117 °C

Density: 795 kg/m³

ChemSpider ID: 7717

ANSWER:

PLANKS QUANTUM THEORY is EXPLAINED here.

Answer:

Explanation:(1) C3H7COOH + NaOH ➡C3H7COONa +H2O

(2) 2CH3OH + 3O2 ➡ 2CO2 + 4H2O

ANSWER:

It's answer is 3 for CHEMICAL REACTION

Explanation:

Please WRITE the CORRECT chemical EQUATION ALSO.

Answer:

0.6023*10^23(0.1*AVAGADRO no)

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the ANSWER is OXIDATION REACTION

ANSWER:

a) hydrogen gas

B) SALT CARBON dioxide and water

c) anhydrous

Answer:

any ONE from 4 of these and its REALLY EASY guess it yourself don't DEPEND on anyone

Answer:

for d BLOCK elements the LAST electron enters to which subshells. The d-block elements exist in groups 3, 4, 5, 6, 7, 8, 9, 10, 11, and 12 of the periodic table and d-block elements are the TRANSITION metals.

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Answer:

Sorry But i am explaining this Answer in English.

Explanation:

Preparation of Potassium Dichromate – K2Cr2O

The solution of sodium chromate (NA2CRO4) is further PURIFIED with sulphuric acid to FORM a solution from which the crystals of orange coloured sodium dichromate (NA2CR2O7. 2H2O) can be EXTRACTED.

ANSWER:

JUTE from COCONUT . I think it MIGHT help you

Explanation:

Type your question...

11th

Chemistry

Some Basic Concepts of Chemistry

Stoichiometry and STOICHIOMETRIC Calculations

50 g of { CaCO }_{ 3 } is...

CHEMISTRY

50 g of CaCO

3

is allowed to react with 70 g of H

3

PO

4

. Calculate :

(i) amount of Ca

3

(PO

4

)

2

formed

(ii) amount of unreacted reagent

December 26, 2019

avatar

Jenny Sagani

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ANSWER

2:3:1

2H

3

PO

4

+3CaCO

3

⟶Ca

3

(PO

4

)

2

+3H

2

0+3CO

2

1mol=98g1mol=100g

70g50g

=

7

5

mol=

2

1

mol

For

2

1

molCaCo

3

,weneed

3

2

×

2

1

=

3

1

molH

3

PO

4

∴Ca

3

(PO

4

)

2

formed=

2

1

×

3

1

=

6

1

moles

=

6

1

×310g

=51.66g

unreactedH

3

PO

4

=

7

5

−

3

1

=

21

8

moles

=

21

8

×98=37.33g

ANSWER:

• red
• 5.06

Explanation:

Answer:

Citric Acid. Citric acid is naturally concentrated in a variety of FRUITS and VEGETABLES and is particularly concentrated in lemons and LIMES. As with most organic acids, citric acid is a weak acid, with a pH level between 3 and 6.

Answer:

SULFURIC acid is a sulfur oxoacid that consists of TWO oxo and two hydroxy GROUPS joined covalently to a central sulfur atom

Answer:

1-(D)is ans

2-(A) is ans

Explanation: PLEASE MAKE me BRILIANT

ANSWER:

Nur JAHAN (born Mehr-un-Nissa, 31 May 1577 – 18 DECEMBER 1645) was the twentieth (and last) wife of the Mughal EMPEROR Jahangir.

...

ATOMIC MASS-Atomic mass is associated with the number of neutrons and protons that are present in a particular nucleus of an element.

It is the average weight of an element.

Atomic mass is DENOTED by A

Atomic mass cannot be be used to define the type of element.

Atomic mass is also used to classify different isotopes of the same element

Atomic mass is mostly measured using atomic mass UNIT (amu).

Atomic Number- Atomic number is usually the number of protons present in an element’s nucleus.

It is the total number of nucleons in the atom’s nucleus.

The letter Z is used to represent an atomic number.

Atomic number mainly helps in the classification and identification of an element.

Isotopes only share the same atomic number.

Atomic number is just a DIGIT that is used to place elements in a periodic table.

ANSWER:

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India is 7th in CONTEXT of AREA in world !!

Answer:

Chromatography can be used to separate mixtures of COLOURED COMPOUNDS . ... As the solvent SOAKS up the paper, it carries the mixtures with it. Different components of the mixture will move at different rates. This separates the mixture out.

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