Types of Chemical Reactions

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What is a Decomposition Reaction?

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A chemical reaction where a single compound breaks down into two or more simpler products. Example: 2 H2O -> 2 H2 + O2.

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What are Reactants in a Chemical Reaction?

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Substances that undergo change during a chemical reaction. They are found on the left side of a chemical equation.

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What is the general formula for a Decomposition Reaction?

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AB -> A + B, where AB is the compound that decomposes.

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What happens to atoms during a chemical reaction?

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Atoms are never lost or gained; they are simply rearranged to form new substances.

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What is a Double Displacement Reaction?

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A reaction where two compounds exchange ions or bonds to form two new compounds. Example: 2 NaBr + Ca(OH)2 -> CaBr2 + 2 NaOH.

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What is a Synthesis Reaction?

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A chemical reaction where two or more simple substances combine to form a more complex product. Example: 2 H2 + O2 -> 2 H2O.

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What is a Combustion Reaction?

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A reaction that occurs when a substance combines with oxygen, releasing energy in the form of light or heat. Example: CH4 + 2 O2 -> CO2 + 2 H2O.

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What is a Single Replacement Reaction?

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A reaction where one element replaces another in a compound. Example: Zn + CuSO4 -> ZnSO4 + Cu.

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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 remains constant.

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What is a Chemical Equation?

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A symbolic representation of a chemical reaction, showing the reactants and products with their respective quantities.