How do we come to know that a chemical reaction has taken place?
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Whenever a chemical change occurs, we can say that a chemical reaction has taken place. Any of the following observations helps us to determine whether a chemical reaction has taken place: change in colour change in temperature change in state evaluation of a gas.
Whenever a chemical change occurs, we can say that a chemical reaction has taken place. Any of the following observations helps us to determine whether a chemical reaction has taken place:
- change in colour
- change in temperature
- change in state
- evaluation of a gas.
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