Question

What are chemical changes? Write the chemical reactions involved in the following processes.
(a) Reaction between vinegar and baking soda
(b) Reaction between Lime water and carbon dioxide
(c) Reaction between Iron water and copper sulphate.
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Answer 1

Chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. These processes are called chemical reactions and, in general, are not reversible except by further chemical reactions.

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Answer 2

Answer:

ans is (A)

Explanation:

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Answer 3

Answer:

ans is (A)

Explanation:

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