CHM 113 ASU EXAM 1 2026 FINAL
PAPER PRACTICE QUESTIONS
ANSWERS ACCURATE A+
◉ Match the reaction type with the reaction (2)
A. Combination
B. Combustion
C. Decomposition
D. Neutralization
E. Precipitation
F. Single-displacement
1. Ba(OH)2 + H2SO4 à 2 H2O + BaSO4
2. Cl2 + 2 NaI à 2NaCl + I2
3. P4 + 10 Cl2 à 4 PCl5
4. H2O2 à H2 + O2.
Answer: f
◉ Match the reaction type with the reaction (3)
A. Combination
B. Combustion
C. Decomposition
D. Neutralization
E. Precipitation
,F. Single-displacement
1. Ba(OH)2 + H2SO4 à 2 H2O + BaSO4
2. Cl2 + 2 NaI à 2NaCl + I2
3. P4 + 10 Cl2 à 4 PCl5
4. H2O2 à H2 + O2.
Answer: a
◉ Match the reaction type with the reaction (4)
A. Combination
B. Combustion
C. Decomposition
D. Neutralization
E. Precipitation
F. Single-displacement
1. Ba(OH)2 + H2SO4 à 2 H2O + BaSO4
2. Cl2 + 2 NaI à 2NaCl + I2
3. P4 + 10 Cl2 à 4 PCl5
4. H2O2 à H2 + O2.
Answer: c
,◉ Select the correct statement below that fits a theoretical yield when a
reaction between equal masses of Ca and O occurs to produce CaO.
A. The mass of CaO produced equals the sum of the starting masses of
Ca and O
B. The mass of CaO produced is more than the sum of the masses of Ca
and O
C. The mass of CaO produced is less than the sum of the masses of Ca
and O
D. There is not enough information to complete this question
E. None of the answer choices are correct.
Answer: The mass of CaO produced equals the sum of the starting
masses of Ca and O
◉ Using the image, select the chemical equation that best represents the
balanced chemical reaction (using smallest whole number coefficients).
A. X2 + YX -> YX2
B. 2 X2 + 4 YX -> 4 YX2
C. X2 + 2 YX -> 2 YX2
D. Y2 + YX à Y2X
E. None of the above.
Answer: c
, ◉ Select the correct set of coefficients for the balanced chemical
reaction using smallest whole number coefficients.
RbOH(aq) + Al2(SO4)3(aq) à Rb2SO4(aq) + Al(OH)3(s)
A. 1, 1, 1, 1
B. 3, 1, 2, 2
C. 3, 1, 3, 1
D. 6, 1, 3, 2
E. 12, 1, 12, 6.
Answer: 6, 1, 3, 2
◉ Which of the following equations is not balanced?
A. C6H12O6 + 6 O2 à 6 CO2 + 6 H2O
B. C2H5OH(l) + 3 O2(g) à 2 CO2(g) + 2 H2O(g)
C. C2H4(g) + 3 O2(g) à 2 CO2(g) + 2 H2O(g)
D. C3H8(l) + 5 O2(g) à 3 CO2(g) + 4 H2O(g)
E. C3H6O(l) + 4 O2(g) à 3 CO2(g) + 3 H2O(g).
Answer: b
◉ When C4H8O4, tetrose, dissolves in water
PAPER PRACTICE QUESTIONS
ANSWERS ACCURATE A+
◉ Match the reaction type with the reaction (2)
A. Combination
B. Combustion
C. Decomposition
D. Neutralization
E. Precipitation
F. Single-displacement
1. Ba(OH)2 + H2SO4 à 2 H2O + BaSO4
2. Cl2 + 2 NaI à 2NaCl + I2
3. P4 + 10 Cl2 à 4 PCl5
4. H2O2 à H2 + O2.
Answer: f
◉ Match the reaction type with the reaction (3)
A. Combination
B. Combustion
C. Decomposition
D. Neutralization
E. Precipitation
,F. Single-displacement
1. Ba(OH)2 + H2SO4 à 2 H2O + BaSO4
2. Cl2 + 2 NaI à 2NaCl + I2
3. P4 + 10 Cl2 à 4 PCl5
4. H2O2 à H2 + O2.
Answer: a
◉ Match the reaction type with the reaction (4)
A. Combination
B. Combustion
C. Decomposition
D. Neutralization
E. Precipitation
F. Single-displacement
1. Ba(OH)2 + H2SO4 à 2 H2O + BaSO4
2. Cl2 + 2 NaI à 2NaCl + I2
3. P4 + 10 Cl2 à 4 PCl5
4. H2O2 à H2 + O2.
Answer: c
,◉ Select the correct statement below that fits a theoretical yield when a
reaction between equal masses of Ca and O occurs to produce CaO.
A. The mass of CaO produced equals the sum of the starting masses of
Ca and O
B. The mass of CaO produced is more than the sum of the masses of Ca
and O
C. The mass of CaO produced is less than the sum of the masses of Ca
and O
D. There is not enough information to complete this question
E. None of the answer choices are correct.
Answer: The mass of CaO produced equals the sum of the starting
masses of Ca and O
◉ Using the image, select the chemical equation that best represents the
balanced chemical reaction (using smallest whole number coefficients).
A. X2 + YX -> YX2
B. 2 X2 + 4 YX -> 4 YX2
C. X2 + 2 YX -> 2 YX2
D. Y2 + YX à Y2X
E. None of the above.
Answer: c
, ◉ Select the correct set of coefficients for the balanced chemical
reaction using smallest whole number coefficients.
RbOH(aq) + Al2(SO4)3(aq) à Rb2SO4(aq) + Al(OH)3(s)
A. 1, 1, 1, 1
B. 3, 1, 2, 2
C. 3, 1, 3, 1
D. 6, 1, 3, 2
E. 12, 1, 12, 6.
Answer: 6, 1, 3, 2
◉ Which of the following equations is not balanced?
A. C6H12O6 + 6 O2 à 6 CO2 + 6 H2O
B. C2H5OH(l) + 3 O2(g) à 2 CO2(g) + 2 H2O(g)
C. C2H4(g) + 3 O2(g) à 2 CO2(g) + 2 H2O(g)
D. C3H8(l) + 5 O2(g) à 3 CO2(g) + 4 H2O(g)
E. C3H6O(l) + 4 O2(g) à 3 CO2(g) + 3 H2O(g).
Answer: b
◉ When C4H8O4, tetrose, dissolves in water
