Unit H Q&A
A balanced chemical equation allows one to determine the - (correct answer)mole ratio
of any two substances in the reaction.
The coefficients in a chemical equation represent the - (correct answer)relative numbers
of moles of reactants and products.
Each of the four types of reaction stoichiometry problems requires using a - (correct
answer)mole ratio.
If one knows the mole ratio of a reactant and product in a chemical reaction, one can -
(correct answer)calculate the mass of the product produced from a known mass of
reactant.
If one knows the mass and molar mass of reactant A and the molar mass of product D
in a chemical reaction, one can determine the mass of product D produced by using the
- (correct answer)mole ratio of D to A from the chemical equation.
In the reaction N2 + 3H2 2NH3, what is the mole ratio of nitrogen to ammonia? -
(correct answer)1:2
In the reaction 2Al2O3 4Al + 3O2, what is the mole ratio of aluminum to oxygen? -
(correct answer)4:3
In the reaction 2H2 + O2 2H2O, what is the mole ratio of oxygen to water? - (correct
answer)1:2
In the reaction Ca + Cl2 CaCl2, what is the mole ratio of chlorine to calcium chloride? -
(correct answer)1:1
, In the reaction C + 2H2 CH4, what is the mole ratio of hydrogen to methane? - (correct
answer)2:1
In the reaction N2 + 3H2 2NH3, what is the mole ratio of hydrogen to ammonia? -
(correct answer)3:2
Pretend you have a job building tricycles. If you had 100 handle bars, 150 wheels, 250
pedals, and 75 seats how many tricycles could you build? - (correct answer)50
Pretend you have a job building tricycles. If you had 100 handle bars, 150 wheels, 250
pedals, and 75 seats what is the limiting reactant? - (correct answer)wheels
Pretend you have a job building tricycles. If you had 100 handle bars, 150 wheels, 250
pedals, and 75 seats how many pedals are left over after you have built the tricycles? -
(correct answer)150
Hydrogen and nitrogen react to form ammonia according to the reaction, 3 H2 + N2 2
NH3. If 4.0 moles of H2 with 2.0 mol of N2 are reacted, how do you know this is a
limiting reactant problem? - (correct answer)The mass of two reactants are given
Hydrogen and nitrogen react to form ammonia according to the reaction, 3 H2 + N2 2
NH3. If 4.0 moles of H2 with 2.0 mol of N2 are reacted how many moles of NH3 would
be produced? - (correct answer)2.7 mol
Hydrogen and nitrogen react to form ammonia according to the reaction, 3 H2 + N2 2
NH3. If 4.0 moles of H2 with 2.0 mol of N2 are reacted, what reactant is the limiting
reactant? - (correct answer)H2
Hydrogen and nitrogen react to form ammonia according to the reaction, 3 H2 + N2 2
NH3. If 4.0 moles of H2 with 2.0 mol of N2 are reacted, How many moles of what
reactant is left over? - (correct answer)0.7 mol of N2
A balanced chemical equation allows one to determine the - (correct answer)mole ratio
of any two substances in the reaction.
The coefficients in a chemical equation represent the - (correct answer)relative numbers
of moles of reactants and products.
Each of the four types of reaction stoichiometry problems requires using a - (correct
answer)mole ratio.
If one knows the mole ratio of a reactant and product in a chemical reaction, one can -
(correct answer)calculate the mass of the product produced from a known mass of
reactant.
If one knows the mass and molar mass of reactant A and the molar mass of product D
in a chemical reaction, one can determine the mass of product D produced by using the
- (correct answer)mole ratio of D to A from the chemical equation.
In the reaction N2 + 3H2 2NH3, what is the mole ratio of nitrogen to ammonia? -
(correct answer)1:2
In the reaction 2Al2O3 4Al + 3O2, what is the mole ratio of aluminum to oxygen? -
(correct answer)4:3
In the reaction 2H2 + O2 2H2O, what is the mole ratio of oxygen to water? - (correct
answer)1:2
In the reaction Ca + Cl2 CaCl2, what is the mole ratio of chlorine to calcium chloride? -
(correct answer)1:1
, In the reaction C + 2H2 CH4, what is the mole ratio of hydrogen to methane? - (correct
answer)2:1
In the reaction N2 + 3H2 2NH3, what is the mole ratio of hydrogen to ammonia? -
(correct answer)3:2
Pretend you have a job building tricycles. If you had 100 handle bars, 150 wheels, 250
pedals, and 75 seats how many tricycles could you build? - (correct answer)50
Pretend you have a job building tricycles. If you had 100 handle bars, 150 wheels, 250
pedals, and 75 seats what is the limiting reactant? - (correct answer)wheels
Pretend you have a job building tricycles. If you had 100 handle bars, 150 wheels, 250
pedals, and 75 seats how many pedals are left over after you have built the tricycles? -
(correct answer)150
Hydrogen and nitrogen react to form ammonia according to the reaction, 3 H2 + N2 2
NH3. If 4.0 moles of H2 with 2.0 mol of N2 are reacted, how do you know this is a
limiting reactant problem? - (correct answer)The mass of two reactants are given
Hydrogen and nitrogen react to form ammonia according to the reaction, 3 H2 + N2 2
NH3. If 4.0 moles of H2 with 2.0 mol of N2 are reacted how many moles of NH3 would
be produced? - (correct answer)2.7 mol
Hydrogen and nitrogen react to form ammonia according to the reaction, 3 H2 + N2 2
NH3. If 4.0 moles of H2 with 2.0 mol of N2 are reacted, what reactant is the limiting
reactant? - (correct answer)H2
Hydrogen and nitrogen react to form ammonia according to the reaction, 3 H2 + N2 2
NH3. If 4.0 moles of H2 with 2.0 mol of N2 are reacted, How many moles of what
reactant is left over? - (correct answer)0.7 mol of N2
