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8th ICSE
IMPORTANT
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The correct formula of sodium oxide is 

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Important Questions on Language of Chemistry

EASY
8th ICSE
IMPORTANT
Its All About Science - Chemistry>Chapter 5 - Language of Chemistry>Exercise>Q A
The principle involved in a chemical equation is
MEDIUM
8th ICSE
IMPORTANT
Its All About Science - Chemistry>Chapter 5 - Language of Chemistry>Exercise>Q A
Limitation of chemical equation is
HARD
8th ICSE
IMPORTANT
Its All About Science - Chemistry>Chapter 5 - Language of Chemistry>Exercise>Q B

FeCl2+2NaOH → _____ ↓+2NaCl

(A) Fe(OH)2         (B) Fe(OH)3     (C) FeO

Enter your correct answer as A, B or C.

EASY
8th ICSE
IMPORTANT
Its All About Science - Chemistry>Chapter 5 - Language of Chemistry>Exercise>Q C
Symbols were first used by Swedish chemist, John Dalton.
EASY
8th ICSE
IMPORTANT
Its All About Science - Chemistry>Chapter 5 - Language of Chemistry>Exercise>Q C
To study the nature of different chemicals requires knowledge of the fundamental building blocks of all chemicals, the molecule.
MEDIUM
8th ICSE
IMPORTANT
Its All About Science - Chemistry>Chapter 5 - Language of Chemistry>Exercise>Q C
Chemical reactions always involve the input or release of energy.
EASY
8th ICSE
IMPORTANT
Its All About Science - Chemistry>Chapter 5 - Language of Chemistry>Exercise>Q C
The molecular formula of baking soda is Na2CO3.
EASY
8th ICSE
IMPORTANT
Its All About Science - Chemistry>Chapter 5 - Language of Chemistry>Exercise>Q C
The law of constant proportion is involved in balancing of a chemical equation.