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7th ICSE
IMPORTANT
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When sodium carbonate reacts with dilute hydrochloric acid, the gas evolved is

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Important Questions on Language of Chemistry

EASY
7th ICSE
IMPORTANT
Concise Chemistry Middle School for Class 7>Chapter 5 - Language of Chemistry>EXERCISE>Q 1
Define chemical reaction.
EASY
7th ICSE
IMPORTANT
Concise Chemistry Middle School for Class 7>Chapter 5 - Language of Chemistry>EXERCISE>Q 1
What is a chemical equation?
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7th ICSE
IMPORTANT
Concise Chemistry Middle School for Class 7>Chapter 5 - Language of Chemistry>EXERCISE>Q 1
Why do we need to balance chemical equations?
EASY
7th ICSE
IMPORTANT
Concise Chemistry Middle School for Class 7>Chapter 5 - Language of Chemistry>EXERCISE>Q 2
State four conditions necessary for chemical reactions to take place.
EASY
7th ICSE
IMPORTANT
Concise Chemistry Middle School for Class 7>Chapter 5 - Language of Chemistry>EXERCISE>Q 3

Differentiate between :

Reactants and products.

EASY
7th ICSE
IMPORTANT
Concise Chemistry Middle School for Class 7>Chapter 5 - Language of Chemistry>EXERCISE>Q 3

Differentiate between :

Chemical reaction and chemical equation



EASY
7th ICSE
IMPORTANT
Concise Chemistry Middle School for Class 7>Chapter 5 - Language of Chemistry>EXERCISE>Q 3

Differentiate between :

A balanced and a skeletal chemical equation.

EASY
7th ICSE
IMPORTANT
Concise Chemistry Middle School for Class 7>Chapter 5 - Language of Chemistry>EXERCISE>Q 4

Write word equations for the following skeletal equations :

KClO3→KCl+O2