Reactions

What does wood burning, leaves decaying, and iron rusting have in common?

Well they are all undergoing a reaction.

What is a reaction? Just like the name implies, a reaction is something reacting with another something. In a reaction there are one or more reactors and one or more products in the end.

For instance the iron is reacting with the oxygen in the air. The two are undergoing a chemical change where they both are becoming different. They are reacting with one another to form a different product.

Reactions are governed, or driven by, energy. In other words a reaction wouldn’t occur without energy giving it a reason to.

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