English, asked by hello2387, 9 months ago

When we can say that reaction has taken place????​

Answers

Answered by muskan2807
5

Answer:

Ans: — When we observe

✓ Change in state

✓ Change in colour

✓ Change in temperature

✓ Evolution of gas

Answered by Anonymous
0

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.

Explanation:

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