Question

How Neha can determine that chemical reaction has happened ?​

Answer 1

Answer:

Chemical reaction can be detected by observing the change in the chemical properties of that substance.

Explanation:

Example is the rusting of iron.

-ScienceTech

Answer 2

Concept: A chemical reaction is a reaction in which a new substance formed by the reaction of reactants.

Find: How Neha can determine that chemical reaction has happened ?

Solution: Neha can determined that chemical reaction has takes place through the characteristics of chemical reaction.

1. Evolution of gas

2. Formation of precipitate

3. Change in color

4. Change in temperature

5. Change in state

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