CHEM 101 Ivy Tech Final Questions and
Answers (2026) | Prep Questions | 100%
Correct Answers | A+
• Which of the following is TRUE?
A. Stoichiometry allows prediction of how much of the reactants are
necessary to form a given amount of product.
B. All of the above are true.
C. Stoichiometry allows prediction of the amount of products that form in a
chemical reaction based on the amounts of reactants.
D. Stoichiometry shows the numerical relationship between chemical
quantities in a balanced chemical equation. -✓✓B
• Diatomic N2 can react with diatomic H2 to form ammonia (NH3). The
balanced chemical equation is:
N2 + 3 H2 ⟶ 2 NH3
If 6 moles of H2 totally reacted with more than enough N2, how many
moles of ammonia would be expected to form?
A. 4 Moles
B. 6 Moles
C. 3 Moles
D. 2 Moles
E. Not enough info -✓✓A
• How many grams of the excess reactant remain assuming the reaction
goes to completion and that you start with 15.5 g of Na2S and 12.1 g of
CuSO4?
Reaction: Na2S+ CuSO4 ⟶ Na2SO4 + CuS
,A. 0.05
B. 9.58
C. 5.92
D. 15.45 -✓✓B
• Calculate the maximum number of grams of NH3 that can be produced by
the reaction of 2.00 g of N2 with 3.00 g of H2.
Reaction: N2 (g) + 3H2 (g) ⟶ 2 NH3 (g)
A. 2.43
B. 0.964
C. None of the above
D. 4.00
E. 17.0 -✓✓A
• Which is the limiting reactant in the following reaction given that you start
with 42.0 g of CO2 and 99.9 g KOH?
Reaction: CO2+ 2 KOH ⟶ K2CO3 + H2O
A. CO2
B. Not enough information
C. KOH
D. K2CO3
E. H2O -✓✓C
• How many moles of lithium nitrate are theoretically produced if we start
with 3.4 moles of Ca(NO3)2 and 2.4 moles of Li3PO4?
Reaction: 3 Ca(NO3)2 + ⟶ 6LiNO3 + Ca3(PO4)2
A. 1.1
B. 6.8
C. 1.2
D. Not enough info
E. 7.2 -✓✓B
, • Consider the following reaction: 2 Mg + O2 ⟶ 2 MgO Δ Hrxn = -1203 kJ.
Calculate the amount of heat (in kJ) associated with complete reaction of 4
moles of Mg.
A. -1203 kJ
B. -601.5 kJ
C. -4812 kJ
D. None of the above
E. -2406 kJ -✓✓E
• Hydrochloric acid reacts with barium hydroxide according to the equation:
2 HCl (aq) + Ba(OH)2 (aq) ⟶ BaCl2 (aq) + 2 H2O ( l) Δ H= -118 kK
Calculate the heat (in kJ) associated with the complete reaction of 18.2
grams of HCl (aq).
A. -58.9
B. -29.5
C. None of above
D. -236
E. +58.9 -✓✓B
• How many grams of NO2 are theoretically produced if we start with 1.2
moles of S and 9.90 moles of HNO3?
Reaction: S + 6HNO3 ⟶ H2SO4+ 6 NO3+ 2 H2O
A. 455
B. Not enough info
C. 7.20
D. 786
E. 331 -✓✓E
• What is the limiting reactant for the following reaction given we have 3.4
moles of Ca(NO3)2 and 2.4 moles of Li3PO4?
Reaction: 3Ca(NO3)2 + 2Li3PO4 ⟶ 6LiNO3 + Ca3(PO4)2
Answers (2026) | Prep Questions | 100%
Correct Answers | A+
• Which of the following is TRUE?
A. Stoichiometry allows prediction of how much of the reactants are
necessary to form a given amount of product.
B. All of the above are true.
C. Stoichiometry allows prediction of the amount of products that form in a
chemical reaction based on the amounts of reactants.
D. Stoichiometry shows the numerical relationship between chemical
quantities in a balanced chemical equation. -✓✓B
• Diatomic N2 can react with diatomic H2 to form ammonia (NH3). The
balanced chemical equation is:
N2 + 3 H2 ⟶ 2 NH3
If 6 moles of H2 totally reacted with more than enough N2, how many
moles of ammonia would be expected to form?
A. 4 Moles
B. 6 Moles
C. 3 Moles
D. 2 Moles
E. Not enough info -✓✓A
• How many grams of the excess reactant remain assuming the reaction
goes to completion and that you start with 15.5 g of Na2S and 12.1 g of
CuSO4?
Reaction: Na2S+ CuSO4 ⟶ Na2SO4 + CuS
,A. 0.05
B. 9.58
C. 5.92
D. 15.45 -✓✓B
• Calculate the maximum number of grams of NH3 that can be produced by
the reaction of 2.00 g of N2 with 3.00 g of H2.
Reaction: N2 (g) + 3H2 (g) ⟶ 2 NH3 (g)
A. 2.43
B. 0.964
C. None of the above
D. 4.00
E. 17.0 -✓✓A
• Which is the limiting reactant in the following reaction given that you start
with 42.0 g of CO2 and 99.9 g KOH?
Reaction: CO2+ 2 KOH ⟶ K2CO3 + H2O
A. CO2
B. Not enough information
C. KOH
D. K2CO3
E. H2O -✓✓C
• How many moles of lithium nitrate are theoretically produced if we start
with 3.4 moles of Ca(NO3)2 and 2.4 moles of Li3PO4?
Reaction: 3 Ca(NO3)2 + ⟶ 6LiNO3 + Ca3(PO4)2
A. 1.1
B. 6.8
C. 1.2
D. Not enough info
E. 7.2 -✓✓B
, • Consider the following reaction: 2 Mg + O2 ⟶ 2 MgO Δ Hrxn = -1203 kJ.
Calculate the amount of heat (in kJ) associated with complete reaction of 4
moles of Mg.
A. -1203 kJ
B. -601.5 kJ
C. -4812 kJ
D. None of the above
E. -2406 kJ -✓✓E
• Hydrochloric acid reacts with barium hydroxide according to the equation:
2 HCl (aq) + Ba(OH)2 (aq) ⟶ BaCl2 (aq) + 2 H2O ( l) Δ H= -118 kK
Calculate the heat (in kJ) associated with the complete reaction of 18.2
grams of HCl (aq).
A. -58.9
B. -29.5
C. None of above
D. -236
E. +58.9 -✓✓B
• How many grams of NO2 are theoretically produced if we start with 1.2
moles of S and 9.90 moles of HNO3?
Reaction: S + 6HNO3 ⟶ H2SO4+ 6 NO3+ 2 H2O
A. 455
B. Not enough info
C. 7.20
D. 786
E. 331 -✓✓E
• What is the limiting reactant for the following reaction given we have 3.4
moles of Ca(NO3)2 and 2.4 moles of Li3PO4?
Reaction: 3Ca(NO3)2 + 2Li3PO4 ⟶ 6LiNO3 + Ca3(PO4)2
