Question

define chemical reaction class 7
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Answer 1

Answer:

a process that involves rearrangement of the molecular or ionic structure of a substance, as distinct from a change in physical form or a nuclear reaction.

Explanation:

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Answer 2

Answer:

it is a process which leads to a chemical change of one substances to another

Explanation:

chemical reaction is divided into=

1 combination reaction

2 decomposition reaction

3 displacement reaction

4 neutralisation reaction

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