Classifying Chemical Reactions

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What is a synthesis (combination) reaction?

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A synthesis reaction is a type of chemical reaction where two or more reactants combine to form a single product. Example: 2H₂ + O₂ → 2H₂O.

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What is a decomposition reaction?

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A decomposition reaction is a type of chemical reaction where a single compound breaks down into two or more simpler products. Example: 2H₂O → 2H₂ + O₂.

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What is a single replacement reaction?

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A single replacement reaction is a type of chemical reaction where one element replaces another in a compound. Example: Mg + CuCl₂ → MgCl₂ + Cu.

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What is a double replacement reaction?

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A double replacement reaction is a type of chemical reaction where two compounds exchange ions or bonds to form two new compounds. Example: AgNO₃ + NaCl → AgCl + NaNO₃.

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What is the general form of a synthesis reaction?

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A + B → AB, where A and B are reactants and AB is the product.

Front

What is the general form of a decomposition reaction?

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AB → A + B, where AB is the compound that breaks down into its components A and B.

Front

What is the general form of a single replacement reaction?

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A + BC → AC + B, where A replaces B in the compound BC.

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What is the general form of a double replacement reaction?

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AB + CD → AD + CB, where the ions of two compounds exchange places.

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What is an example of a combustion reaction?

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A combustion reaction is a type of reaction where a substance combines with oxygen, releasing energy. Example: CH₄ + 2O₂ → CO₂ + 2H₂O.

Front

What is the role of coefficients in a chemical equation?

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Coefficients indicate the number of moles of each substance involved in the reaction, helping to balance the equation.