Question

Changes and Reactions
B Answer the following in not more than 40 words.
1. How would you decide whether a change is physical or chemical? Mention two characteristics of
each kind of change.
of salt in water is a physical change.​

Answer 1

Answer:

Proof to decide whether it's a chemical change or not are as follows :-

1) Change in Colour!

2) Evolution of Gas!

3) Change in State!

4) Change in Temperature!

5) Formation of Precipitate!

I hope it helps u!

Thank u!