English, asked by dineshkumar1519, 22 hours ago

How Neha can determine that chemical reaction has happened​

Answers

Answered by marvaminuva
1

Explanation:

We can tell if a chemical reaction has taken place when one or more of the following things happen:

There has been a colour change inside the reaction flask.

A gas has formed. Usually we know a gas has formed when we can see bubbles. ...

A solid has formed.

Answered by SUPERMANSIVARAJKUMAR
2

Answer:

i) CHANGE IN COLOURS

ii) CHANGE IN ODOUR

iii) CHANGE IN TEMPERATURE

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