Question

What are the signs of a chemical reaction?

A. Color change and gas released

B. Color, Gas, Explosion, Smoke,
Precipitate

C. Color, Gas, Light, Temperature, Precipitate​

Answer 1

hey , its option c because in chemical reaction colour + evolution of gas takes place + temp. + precipitation. but also light can come in the case of chemical reaction.

Answer 2

C

Step-by-step explanation:

Because i just had to do this on my assignment and got 100