14. ACP REVIEW - 9B Types of Chemical Reactions

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What is a single replacement reaction?

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A chemical reaction where one element replaces another in a compound. Example: 3 Pb + 2 H₃PO₄ → 3 H₂ + Pb₃(PO₄)₂.

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What is an acid-base (neutralization) reaction?

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A reaction between an acid and a base that produces water and a salt. Example: 3 HBr + Al(OH)₃ → 3 H₂O + AlBr₃.

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What is a decomposition reaction?

Back

A reaction where a single compound breaks down into two or more simpler products. Example: CaCO₃ → CaO + CO₂.

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What is a double replacement reaction?

Back

A reaction where two compounds exchange ions to form two new compounds. Example: Na₂S(aq) + 2 HCl(aq) → H₂S(aq) + 2 NaCl(s).

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What is a synthesis (combination) reaction?

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A reaction where two or more reactants combine to form a single product. Example: 2 NH₃ + H₂SO₄ → (NH₄)₂SO₄.

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What are the signs of a chemical reaction?

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Signs include color change, gas production, temperature change, and formation of a precipitate.

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What is a precipitate?

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A solid that forms and settles out of a liquid mixture during a chemical reaction.

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What is the law of conservation of mass?

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In a chemical reaction, mass is neither created nor destroyed; it is conserved.

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What is a reactant?

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A substance that undergoes change during a chemical reaction.

Front

What is a product?

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A substance that is formed as a result of a chemical reaction.