Stoichiometry Vocabulary Review

What is the term for the smallest unit of a chemical element that retains its chemical properties?

• Molecule

• Atom

• Compound

• Ion

Tags

NGSS.MS-PS1-1

Which of the following is the term for a substance made of two or more elements chemically combined in a fixed ratio?

• Mixture

• Element

• Compound

• Solution

What is the term for the number of atoms of each element in a molecule?

• Atomic number

• Molecular formula

• Empirical formula

• Molar mass

What is the term for the mass of one mole of a substance?

• Atomic mass

• Molar mass

• Molecular weight

• Formula mass

Which of the following is the term for the simplest whole-number ratio of atoms in a compound?

• Molecular formula

• Empirical formula

• Structural formula

• Chemical equation

What is the term for the reactant that is completely consumed in a chemical reaction, limiting the amount of product formed?

• Excess reactant

• Limiting reactant

• Catalyst

• Intermediate

What is the term for the amount of product that can be formed in a chemical reaction based on the limiting reactant?

• Theoretical yield

• Actual yield

• Percent yield

• Stoichiometric yield

Tags

NGSS.HS-PS1-7

What is the term for the actual amount of product obtained from a chemical reaction?

• Theoretical yield

• Actual yield

• Percent yield

• Stoichiometric yield

What is the term for the ratio of the actual yield to the theoretical yield, expressed as a percentage?

• Theoretical yield

• Actual yield

• Percent yield

• Stoichiometric yield

What is the term for a balanced chemical equation that shows the relative amounts of reactants and products?

• Molecular equation

• Empirical equation

• Stoichiometric equation

• Ionic equation

Tags

NGSS.HS-PS1-7