Question

what are three conditions necesssary for a chemical reaction to occur
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Answer 1

Answer:

Conditions necessary for chemical reactions :

• Close contact.
• Solution form.
• Heat.
• Light.
• Catalyst.

Answer 2

The three conditions necesssary for a chemical reaction to occur

➩ On the basis of by which starts a chemical reaction has taken place :-

1. Change in temperature

2. Change in State

3. Change in color

4. Evolution of gas

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