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Chemical Reactions
A chemical reaction results in the formation of a new substance or substances with properties that are different from the original substance or substances. A short easy way to show a chemical reaction using symbols instead of words. Reactants are on the left side of the arrow. Products are on the right side of the arrow. |
Reaction Types
Sythesis Reactions Two or more substances combine to form a single new substance. Example: |
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Decomposition Reactions A single substance breaks down to form two or more new substances. Example: |
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Replacement Reactions Atoms change places to form new substances. They can be double or single replacement reactions. Examples: |
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Double Replacement
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Single Replacement
Law of Conservation of Mass
| The amount of matter in a chemical reaction does not change. The total mass of the reactants must equal the total mass of the products. Equations must be balanced. |
TRY THIS: Balancing Chemical Equations
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