Lakhmir Singh's Science - Chemistry>Chapter 5 - Language of Chemistry>EXERCISES>Q 9

MEDIUM

8th ICSE

IMPORTANT

Earn 100

The chemical formula of sodium carbonate is:

50% studentsanswered this correctly

Important Questions on Language of Chemistry

MEDIUM

8th ICSE

IMPORTANT

Lakhmir Singh's Science - Chemistry>Chapter 5 - Language of Chemistry>EXERCISES>Q 10

Which of the following is a balanced chemical equation?

MEDIUM

8th ICSE

IMPORTANT

Lakhmir Singh's Science - Chemistry>Chapter 5 - Language of Chemistry>EXERCISES>Q 11

Which of the following is not a balanced equation?

MEDIUM

8th ICSE

IMPORTANT

Lakhmir Singh's Science - Chemistry>Chapter 5 - Language of Chemistry>EXERCISES>Q 12

What does coefficient x and y stand for in the following equation:

$Ca + {xH}_{2} O \to yCa (OH)_{2} + H_{2}$

MEDIUM

8th ICSE

IMPORTANT

Lakhmir Singh's Science - Chemistry>Chapter 5 - Language of Chemistry>EXERCISES>Q 4

An atom or a group of atoms that gains electron(s) forms a _____ ion.

EASY

8th ICSE

IMPORTANT

Lakhmir Singh's Science - Chemistry>Chapter 5 - Language of Chemistry>EXERCISES>Q 3

One molecule of water is represented as

H_{2} O

.

MEDIUM

8th ICSE

IMPORTANT

Lakhmir Singh's Science - Chemistry>Chapter 5 - Language of Chemistry>EXERCISES>Q 1

Complete the following table.

Name of the compound	Chemical formula
Calcium fluoride
	${NH}_{4} {({SO}_{4})}_{2}$
Zinc oxide
	$NaCl$
Potassium chloride
	${ZnSO}_{4}$

MEDIUM

8th ICSE

IMPORTANT

Lakhmir Singh's Science - Chemistry>Chapter 5 - Language of Chemistry>EXERCISES>Q 2

What are monoatomic and polyatomic ions? Give two examples of each.

MEDIUM

8th ICSE

IMPORTANT

Lakhmir Singh's Science - Chemistry>Chapter 5 - Language of Chemistry>EXERCISES>Q 7

Classify Chloride into cations and anions. Also, write its chemical formula.