Question

6
Do you think that a chemical reaction has taken place when X and Y get mixed?
Justify your answer.
Why should we put a cork on the mouth of the flask?
(ii)

(iii)
What happens to the mass of the set up when the flask is weighed again in step 6?
(iv)
Name and State the law of chemical combination illustrated by the above activity?

Answer 1

Explanation:

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