Question

Question 9
Which of the following statement(s) represent chemical change(s)?
1. Decaying of dead matter
II. An aspirin is crushed into fine powder.
III. Burning of fireworks.​

Answer 1

Answer :

Statements :- I & III

Explanation :

There is chemical change in Decaying of dead matter and Burning of fireworks

But there is no change in the chemical composition in crushing an aspirin into fine powder.

Answer 2

Answer:

Decaying of dead matter.

&

Burning of fireworks

Explanation:

1&2 are the answers be because

When aspirin is crushed is remains aspirin only don't changes its form and admits chemical composition remains same.

When dead matter is decaying it's form changes and chemical composition also changes.

Also when fireworks burns the chemical inside it burns and changes it's form and chemical composition also changes.

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