Chemical Reactions

Subject: Science  ·  Grade level: 10th

What happens when chemicals combine — and how we describe it with equations. Burning wood, rusting iron, your body digesting food — all chemical reactions. Th

In this lesson

• What is a chemical reaction?
• Five types of reactions
• Conservation of mass — balancing

Key terms

Reactant

A substance you start with in a reaction.

Product

A substance produced by the reaction.

Equation

A symbolic way to show a reaction: reactants → products.

Chemical Reactions lesson on BrightPath

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