Flashcard: Types of Chemical Reactions and Balancing Equations

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What is a Double Displacement Reaction?

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A chemical 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 Decomposition Reaction?

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A type of chemical reaction where one compound breaks down into two or more simpler products. Example: 2 H₃AsO₄ → As₂O₅ + 3 H₂O.

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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 chemical 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 Displacement Reaction?

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A reaction where one element replaces another in a compound. Example: Zn + 2 HCl → ZnCl₂ + H₂.

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What role do coefficients play in a balanced equation?

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Coefficients indicate the number of molecules or moles of a substance involved in a reaction, performing multiplication in the context of balancing.

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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; the total mass of reactants equals the total mass of products.

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What is the difference between reactants and products?

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Reactants are the starting substances in a chemical reaction, while products are the substances formed as a result of the reaction.

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What is an example of a double replacement reaction?

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An example is: AgNO₃ + NaCl → AgCl + NaNO₃.

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What is an example of a synthesis reaction?

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An example is: 2 H₂ + O₂ → 2 H₂O.