Chapter 23 Pre-Test

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What is a double displacement reaction?

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A double displacement reaction is a type of chemical reaction where two compounds exchange ions or bonds to form two new compounds. Example: @@ ext{NaOH} + ext{HCl} ightarrow ext{NaCl} + ext{H}_2 ext{O}@@.

Front

What is a single displacement reaction?

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A single displacement reaction is a chemical reaction where one element replaces another element in a compound. Example: @@ ext{Zn} + ext{CuSO}_4 ightarrow ext{ZnSO}_4 + ext{Cu}@@.

Front

What are the products of the reaction @@ ext{C}_6 ext{H}_{12} ext{O}_6 + ext{6O}_2 ightarrow ext{6CO}_2 + ext{6H}_2 ext{O}@@?

Back

Front

What is the general form of a double displacement reaction?

Back

The general form is: @@AB + CD ightarrow AD + CB@@, where A and C are cations and B and D are anions.

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What is the difference between reactants and products in a chemical reaction?

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

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Where are the reactants located in a chemical equation?

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The reactants are located on the left side of the chemical equation.

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What is the significance of balancing a chemical equation?

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Balancing a chemical equation ensures that the law of conservation of mass is obeyed, meaning the number of atoms of each element is the same on both sides of the equation.

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What is an example of a combustion reaction?

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An example of a combustion reaction is: @@ ext{C}_3 ext{H}_8 + ext{O}_2 ightarrow ext{CO}_2 + ext{H}_2 ext{O}@@.

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What is the role of a catalyst in a chemical reaction?

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

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What is the definition of a chemical equation?

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