Question

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

Answer 1

❥ answer

• we can observe , if the reaction take place one the following things will definitely happens ;

• change in color
• change in temperature
• formation of precipitation
• change is state
• change in mass

{ ✓ verified answer }

Answer 2

Explanation:

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.

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