Question

How we can say that a not chemical reaction has taken place

Answer 1

Answer:

There are four signs that a chemical reaction has occurred: a change in color, a change in temperature, formation of a gas or formation of a precipitate. A precipitate is a solid that forms when two liquid solutions are mixed.

Explanation:

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Answer 2

i) CHANGE IN COLOURS

ii) CHANGE IN ODOUR

iii) CHANGE IN TEMPERATURE

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