Final answer:
Chemical reactions can be categorized into five general types: combination, decomposition, and single-replacement reactions.
Explanation:
Five general types of chemical reactions:
- Combination Reactions: Two or more substances combine to form a new compound. Example: 2H₂ + O₂ → 2H₂O
- Decomposition Reactions: A compound breaks down into simpler substances. Example: 2H₂O → 2H₂ + O₂
- Single-Replacement Reactions: One element replaces another in a compound. Example: Zn + CuSO₄ → ZnSO₄ + Cu
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