Question

Q1. Write the characteristics of a chemical
reaction?(1)​

Answer 1

Answer:

Characteristics of Chemical reaction

1)Evolution of gas. Some chemical reactions are characterised by the evolution of gas. ...

2)Formation of precipitate. Some chemical reactions are characterised by the formation of precipitate. ...

3)Change in colour. Some chemical reactions are characterised by change in colour. ...

4)Change in temperature. ...

5)Change of state.

Explanation:

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Answer 2

Answer:

it is temporary

most of time energy is either realised or absorbed

Explanation:

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