vivekMody
vivekMody
24-06-2015
Physics
Answered
How do we know a chemical reaction has taken place?
Answer :
Jemma
Jemma
24-06-2015
A chemical reaction can be characterized by one or more of the following:
1. Evolution of heat
2. Change in colour
3. Formation of precipitate
4. Evolution of gas
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SUPERMANSIVARAJKUMAR
SUPERMANSIVARAJKUMAR
19-08-2021
Answer:
i) CHANGE IN COLOURS
ii) CHANGE IN ODOUR
iii) CHANGE IN TEMPERATURE
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