The process of burning a substance in the presence of oxygen is called ___.

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Solution

When you light a matchstick, you are setting the tip on fire. This happens because the phosphorous in the tip reacts with oxygen in air and ignites because of friction. This reaction releases energy in the form of heat and light.

When oxygen reacts with substances, we usually see such heat and light. We call this process burning. Combustion is a fancy way of saying the same thing.

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