Counting/Balancing/Types of Chemical Reactions Test Review

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What is a Double Replacement Reaction?

Back

A chemical reaction where two compounds exchange ions or bonds to form two new compounds. Example: Na2S + HCl → NaCl + H2S.

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What is a Combustion Reaction?

Back

A chemical reaction that occurs when a substance combines with oxygen, releasing energy in the form of light and heat. Example: C4H10 + O2 → CO2 + H2O.

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What is a Synthesis Reaction?

Back

A chemical reaction in which two or more simple substances combine to form a more complex product. Example: H2 + Cl2 → HCl.

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What is a Single Replacement Reaction?

Back

A chemical reaction where one element replaces another in a compound. Example: Mg + HF → MgF2 + H2.

Front

What is the general form of a Single Replacement Reaction?

Back

A + BY → AY + B.

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What is a Decomposition Reaction?

Back

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

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What are the signs of a chemical reaction?

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Color change, gas production, temperature change, and formation of a precipitate.

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What is the Law of Conservation of Mass?

Back

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

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What is a precipitate in a chemical reaction?

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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 role of a catalyst in a chemical reaction?

Back

A substance that increases the rate of a chemical reaction without being consumed in the process.