rameshWason946 rameshWason946

02-06-2015
Chemistry

Answered

How do we come to know that a chemical reaction has taken place?

Answer :

Аноним Аноним

02-06-2015

heat will be produced that is one factor and light may be produced and change in color may take place

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keerthika1998lekha keerthika1998lekha

02-06-2015

The following will denote you whether a chemical reaction has taken place.
1. Release of gas
2. formation of precipitate
3. Change in temperature
4. Change in color or odour.

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