state any three observations which help to determine whether a chemical reaction has taken place
Answers
Answered by
3
- change in colour.
- change in state.
- change in temperature.
- formation of precipitates.
hope it's helpful
Answered by
0
change in temperature ; colour ; state
Similar questions
English,
7 months ago
Social Sciences,
7 months ago
Computer Science,
7 months ago
Science,
1 year ago
Math,
1 year ago