Chemical Equations Balancing Quiz

Identify the reactants and products in the following chemical equation: 2H2 + O2 -> 2H2O

• 2H2O and O2 are the reactants, and H2 is the product.

• 2H2 and O2 are the reactants, and 2H2O is the product.

• H2 and 2O2 are the reactants, and 2H2O is the product.

• H2O and O2 are the reactants, and 2H2 is the product.

Identify the reactants and products in the following chemical equation: Fe + O2 -> Fe2O3

• Fe2O3 and O2 are the reactants, and Fe is the product.

• Fe2O3 and Fe are the reactants, and O2 is the product.

• Fe and O2 are the reactants, and Fe2O3 is the product.

• Fe2O3 and Fe are the products, and O2 is the reactant.

Identify the reactants and products in the following chemical equation: 2Na + 2H2O -> 2NaOH + H2

• 2Na + 2H2O -> 2NaOH + H2

• 2Na + 2H2O -> 2NaH + H2O

• 2Na + 2H2O -> 2NaOH + O2

• Na + H2O -> NaOH + H2O

Balance the chemical equation: Al + HNO3 -> Al(NO3)3 + H2

• 2Al + 6HNO3 -> 2Al(NO3)3 + 3H2

• 2Al + 6HNO3 -> 2Al(NO3)3 + 6H2

• Al + 3HNO3 -> Al(NO3)3 + H2

• 2Al + 3HNO3 -> Al(NO3)3 + 3H2

Balance the chemical equation: Ca(OH)2 + H3PO4 -> Ca3(PO4)2 + H2O

• 3Ca(OH)2 + 2H3PO4 -> Ca3(PO4)2 + 6H2O

• Ca(OH)2 + H3PO4 -> Ca3(PO4)2 + 2H2O

• 2Ca(OH)2 + H3PO4 -> Ca3(PO4)2 + 3H2O

• 3Ca(OH)2 + 2H3PO4 -> Ca3(PO4)2 + 4H2O

Balance the chemical equation: NH4NO3 -> N2O + H2O

• 2 NH4NO3 -> N2O + 2 H2O

• NH4NO3 -> N2O + H2O

• 3 NH4NO3 -> N2O + 2 H2O

• 2 NH4NO3 -> N2O + H2O

Use coefficients to balance the chemical equation: C3H8 + O2 -> CO2 + H2O

• C3H8 + 5O2 -> 3CO2 + 4H2O

• C3H8 + 5O2 -> 2CO2 + 4H2O

• C3H8 + 6O2 -> 3CO2 + 4H2O

• C3H8 + 4O2 -> 3CO2 + 4H2O

Use coefficients to balance the chemical equation: N2 + H2 -> NH3

• N2 + H2 -> 2NH3

• N2 + 4H2 -> 3NH3

• N2 + 2H2 -> NH3

• N2 + 3H2 -> 2NH3

Balance the chemical equation for the combustion of methane: CH4 + O2 -> CO2 + H2O

• CH4 + 2O2 -> CO2 + 2H2O

• CH4 + 3O2 -> CO2 + 2H2O

• CH4 + O2 -> CO2 + H2O

• CH4 + 2O2 -> CO2 + H2O2

Balance the chemical equation for the combustion of propane: C3H8 + O2 -> CO2 + H2O

• C3H8 + 4O2 -> 3CO2 + 4H2O

• C3H8 + 6O2 -> 3CO2 + 4H2O

• C3H8 + 5O2 -> 3CO2 + 4H2O

• C3H8 + 5O2 -> 2CO2 + 2H2O