Question

What is the importance of chemical changes?

Answer 1

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reactions areimportant because they are the basis of all life on earth. All basic tasks of day to day life are performed via the aid ofchemical reactions. These include everything from digesting your food, starting your car, or even thinking of doing something.

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Answer 2

It is not necessary at this stage to talk about particles such as atoms or molecules or chemical bonds. ... The oxygen in air is a very reactive chemical and is important in many chemical reactions such as combustion, rusting and the reactions by which we get energy from the food we eat.