Question

Define combination reaction. Give two examples of combination
reaction which is exothermic in nature.
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Answer 1

Explanation:

In combination reactions, two or more substances combine to form a new compound. Only one product is obtained in such reactions. The reactants in such reactions can be elements as well as compounds. For Example, Calcium oxide reacts with water to produce calcium hydroxide

Answer 2

A combination reaction is a reaction in which two reactants combine to form one product.Magnesium oxide combines with carbon dioxide to form magnesium carbonate with the evolution of heat, as thisreaction is an exothermic reaction