Chemistry, asked by anandhakumaran, 1 year ago

state any three observarions which help to determine wheather a chemical reaction has taken place.

Answers

Answered by mahakmeena79879

0

Change in state.
Change in temperature.
Change in colour.
Evolution of gas.

Answered by tisha72

0

new product will form
emission of heat or light
formation of precipitate
evolution of gas etc

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