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AP Chemistry Stoichiometry of Chemical Reactions — practice questions

Explore 23 free Stoichiometry of Chemical Reactions questions in AP Chemistry Chemistry. Open each question or exercise to read its content, reference answers and available explanation.

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Stoichiometry of Chemical Reactions questions and exercises with answers

Showing questions 1–23 of 23.

In a chemical equation, the substances undergoing reaction are called:Read the answer and worked solution →The substances generated by a reaction are placed on which side of the equation?Read the answer and worked solution →Coefficients in a balanced equation may correctly be read as:Read the answer and worked solution →Convention says a balanced equation should use coefficients that are:Read the answer and worked solution →An ion that appears unchanged on both sides and is removed to give the net ionic equation is called a:Read the answer and worked solution →A balanced equation that does not show the dissolved ions explicitly is called a:Read the answer and worked solution →Ionic compounds dissolved in water are most realistically represented as:Read the answer and worked solution →Silver chloride is written with the state symbol s in a precipitation equation because it:Read the answer and worked solution →The three most prevalent types of chemical reaction introduced are precipitation, oxidation-reduction and:Read the answer and worked solution →To predict a precipitation reaction, you identify the ions present and then consider whether:Read the answer and worked solution →Sodium hydroxide is classified as a strong base because in water it:Read the answer and worked solution →A neutralisation reaction has an acid and a base as reactants and typically produces:Read the answer and worked solution →A double arrow is used in an acid equation to indicate that the acid is:Read the answer and worked solution →Compounds that produce hydroxide ions by chemically reacting with water, rather than by dissociating, are:Read the answer and worked solution →When one element appears in more than one formula on the same side of an equation, you must:Read the answer and worked solution →Ordering the three ways of writing a reaction from most to least detail about ions gives:Read the answer and worked solution →In the reaction between sodium and chlorine, sodium is oxidised, which means chlorine:Read the answer and worked solution →Reach the net ionic equationRead the answer and worked solution →Reactant or product?Read the answer and worked solution →Sort each reaction by its typeRead the answer and worked solution →True or false: writing equationsRead the answer and worked solution →Complete the acid-base ruleRead the answer and worked solution →Match each equation type to its detailRead the answer and worked solution →

Worked practice questions

In a chemical equation, the substances undergoing reaction are called:

  1. Reactants
  2. Products
  3. Catalysts
  4. Solvents
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Correct answer: A. Reactants

1. A chemical equation is written with two sides separated by an arrow. 2. The substances undergoing reaction are called reactants, and their formulas are placed on the left side of the equation. 3. The substances generated by the reaction are called products, on the right side. 4. A catalyst speeds a reaction without being consumed, so it is neither. _Source: OpenStax Chemistry 2e (CC BY 4.0), Ch 4 'Stoichiometry of Chemical Reactions', sections 4.1-4.5_

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The substances generated by a reaction are placed on which side of the equation?

  1. Below the arrow
  2. The right side
  3. The left side
  4. Above the arrow
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Correct answer: B. The right side

1. The arrow in an equation points from what you start with to what you end with. 2. The substances generated by the reaction are called products. 3. Their formulas are placed on the right side of the equation. 4. Reactant formulas go on the left. _Source: OpenStax Chemistry 2e (CC BY 4.0), Ch 4 'Stoichiometry of Chemical Reactions', sections 4.1-4.5_

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Coefficients in a balanced equation may correctly be read as:

  1. Ratios
  2. Masses
  3. Volumes
  4. Charges
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Correct answer: A. Ratios

1. A balanced equation tells you how much of each species takes part. 2. These coefficients represent the relative numbers of reactants and products. 3. Therefore they may be correctly interpreted as ratios. 4. They are not masses, because different species have different molar masses. _Source: OpenStax Chemistry 2e (CC BY 4.0), Ch 4 'Stoichiometry of Chemical Reactions', sections 4.1-4.5_

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More Chemistry topics

Composition of Substances and SolutionsEquilibria of Other Reaction ClassesSolutions and ColloidsThermodynamicsAcid-Base EquilibriaAtoms, Molecules, and IonsChemical Bonding and Molecular GeometryElectronic Structure and Periodic Properties