Question

what is chemical reaction?
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Answer 1

Answer:

chemical reactions are those reactions in which two or more elements combine to form product.

Answer 2

Answer:

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Explanation:

It's a change in one or more substances, called reactants which combine to form one or more substances which have completely different properties called products.

Reactants : The ones on the left hand side, which perform chemical reactions and they undergo chemical change.

Products : The ones which are on the right hand side and are formed after undergoing few chemical changes in them, these are the new species formed.