All In One ICSE Chemistry>Chapter 1 - The Language of Chemistry>CHAPTER EXERCISE>Q 26

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IMPORTANT

Earn 100

Write the formulae and then balance the following chemical equation.
Red lead oxide $\to$ Lead monoxide+Oxygen

Important Questions on The Language of Chemistry

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9th ICSE

IMPORTANT

All In One ICSE Chemistry>Chapter 1 - The Language of Chemistry>CHAPTER EXERCISE>Q 26

Write the formulae and then balance the following chemical equations.
Ferric chloride+Ammonium hydroxide $\to$ Ferric hydroxide+Ammonium chloride

HARD

9th ICSE

IMPORTANT

All In One ICSE Chemistry>Chapter 1 - The Language of Chemistry>CHAPTER EXERCISE>Q 27

Calculate the relative molecular mass of the

H_{2} {SO}_{4}

.

HARD

9th ICSE

IMPORTANT

All In One ICSE Chemistry>Chapter 1 - The Language of Chemistry>CHAPTER EXERCISE>Q 27

Calculate the relative molecular mass of

{({NH}_{4})}_{2} {SO}_{4}

.

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9th ICSE

IMPORTANT

All In One ICSE Chemistry>Chapter 1 - The Language of Chemistry>CHAPTER EXERCISE>Q 28

Calculate the percentage composition of various elements in ${Na}_{2} {CO}_{3}$ .
[Given that, the relative atomic masses of $O = 16, Na = 23, C = 12] .$

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IMPORTANT

All In One ICSE Chemistry>Chapter 1 - The Language of Chemistry>CHALLENGERS*>Q 1

The formula of oxide of an element Z is

Z_{2} O_{3}

. What is the valency of element Z and oxygen?

MEDIUM

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All In One ICSE Chemistry>Chapter 1 - The Language of Chemistry>CHALLENGERS*>Q 2

The element B shows valencies of

4

and

6

. The formulae of its two oxides respectively are

MEDIUM

9th ICSE

IMPORTANT

All In One ICSE Chemistry>Chapter 1 - The Language of Chemistry>CHALLENGERS*>Q 3

The formula of the sulphate of an element X is

X_{2} ({SO}_{4})_{3}

. The formula of nitride of the element X is

HARD

9th ICSE

IMPORTANT

All In One ICSE Chemistry>Chapter 1 - The Language of Chemistry>CHALLENGERS*>Q 4

"Hydrogen sulphide gas burns in air to given water and sulphur dioxide". The balanced equation for this reaction is