Examination
180 minutes
Instructions:
1. Read each question carefully.
2. Answer all questions.
3. Use the provided answer sheet to mark your responses.
4. Ensure all answers are final before submitting the exam.
5. Please answer each question below and click Submit when you
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7. This is Exam which will assess your knowledge on the course
Learning Resources.
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Read All Instructions Carefully and Answer All the
Questions Correctly Good Luck: -
0.820 mole of hydrogen gas has a volume of 2.00 L at a
certain temperature and pressure. What is the volume
of 0.125 mol of this gas at the same temperature and
pressure?
A) 4.01 L
B) 0.305 L
C) 0.0512 L
D) 19.5 L
E) 0.250 L - Answer>> B
Which of the following is an acid-base neutralization
reaction?
E
A. 2Al(s) + 3H2SO4(aq) Al2(SO4)3(aq) + 3H2(g)
B. SO2(g) + H2O(l) H2SO3(g)
C. LiOH(aq) + HNO3(aq) LiNO3(aq) + H2O(l)
D. 2KBr(aq) + Cl2(g) 2KCl(aq) + Br2(l)
E. CaBr2(aq) + H2SO4(aq) CaSO4(s) + 2HBr(g)
Answer: C - Answer>> ...
Which of the following is INCORRECTLY classified? (Ac =
acetate ion)
E
A. HAc / weak electrolyte
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,B. HCl / strong electrolyte
C. NaCl / strong electrolyte
D. NaOH / weak electrolyte
E. H2O / nonelectrolyte
Answer: D - Answer>> ...
Which of the following is the correct NET IONIC
equation for the
M neutralization of acetic acid (HAc) with Ca(OH)2? (Ac
= acetate ion)
A. 2 HAc + Ca(OH)2 CaAc2 + 2 H2O
B. H+ + OH ─ H2O
C. HAc + OH ─ Ac ─ + H2O
A. 2 H+ + Ca(OH)2 Ca2+ + 2 H2O
Answer: C - Answer>> ...
Which of the following is the correct net ionic equation
for the reaction that occurs
M when solutions of Pb(NO3)2 and NH4Cl are mixed?
A. Pb(NO3)2(aq) + 2NH4Cl(aq) NH4NO3(aq) + PbCl2(s)
B. Pb2+(aq) + 2Cl─(aq) PbCl2(s)
C. Pb2+(aq) + 2NO3─(aq) + 2NH4+(aq) + 2Cl─(aq)
2NH4+(aq) + 2NO3─(aq) + PbCl2(s)
D. NH4+(aq) + NO3─(aq) 2NH4NO3 - Answer>> Answer:
B
Which of the following processes is endothermic?
a. O2(g) + 2H2(g) 2H2O(g)
b. H2O(g) H2O(l)
c. 3O2(g) + 2CH3OH(g) 2CO2(g) + 2H2O(g)
d. H2O(s) H2O(l) - Answer>> D
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, Which of the following reactions does not represent an
oxidation-
M reduction reaction?
A. 3Al + 6HCl 3H2 + AlCl3
B. 2H2O 2H2 + O2
C. 2NaCl + Pb(NO3)2 PbCl2 + 3NaNO3
D. 2NaI + Br2 2NaBr + I2 - Answer>> Answer: C
Which of the following reactions is a precipitation
reaction?
A) 2Li + H2 2LiH
B) Ba(NO3)2 + Na2SO4 2NaNO3 + BaSO4
C) CuO + H2 Cu + H2O
D) Ca + F2 CaF2 - Answer>> B
Which of the following represents a metal displacement
reaction?
2NaN3(s) 2Na(s) + 3N2(g)
Fe2O3(s) + 2Al(s) 2Fe(s) + Al2O3(s)
3NO2(g) + H2O(l) 2HNO3(aq) + NO(g)
2P(s) + 3Cl2(g) 2PCl3(g)
2ZnS(s) + 3O2(g) 2ZnO(s) + 2SO2(g) - Answer>> B
Which of these atoms is paramagnetic both in its
ground state and in all of its excited states?
A. C
B. N
C. O
D. Ti
E. Cr - Answer>> B. N
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