CHEM 120 EXAM 3 INTRODUCTION TO GENERAL ORGANIC AND BIOLOGICAL CHEMISTRY NEW UPDATE FINAL STUDY GUIDE 2026 QUESTIONS WITH ANSWERS GRADED A+

CHEM 120 EXAM 3 INTRODUCTION TO
GENERAL ORGANIC AND BIOLOGICAL
CHEMISTRY NEW UPDATE FINAL STUDY
GUIDE 2026 QUESTIONS WITH ANSWERS
GRADED A+

⫸ What does GER stand for in redox chemistry? Answer: Gaining of
Electrons is Reduction.


⫸ Is Fe2+ oxidized or reduced when it becomes Fe0? Answer: Fe is
reduced.


⫸ Is O2- oxidized or reduced when it becomes O0? Answer: O is
oxidized.


⫸ Is Cu+1 oxidized or reduced when it becomes Cu2+? Answer: Cu is
oxidized.


⫸ What is an oxidizing agent? Answer: Contains the species being
reduced and oxidizes another species by accepting electrons.


⫸ What is a reducing agent? Answer: Contains the species being
oxidized and reduces another species by donating electrons.

, ⫸ What is the oxidizing agent in the reaction Cu2+ + Zn0 → Cu0 +
Zn2+? Answer: Cu2+ is the oxidizing agent.


⫸ What is the reducing agent in the reaction V4+ + Cu+ → Cu+5 + V0?
Answer: Cu+ is the reducing agent.


⫸ What are the oxidation numbers in the reaction 2 H2 + O2 → 2 H2O?
Answer: H is +1 and O is -2.


⫸ What is the reducing agent in the reaction 2 H2 + O2 → 2 H2O?
Answer: H2 is the reducing agent.


⫸ What is the oxidizing agent in the reaction V + O2 → VO2? Answer:
O2 is the oxidizing agent.


⫸ What is an organic compound? Answer: A compound based on and
containing carbon atoms.


⫸ What is the golden rule of organic chemistry? Answer: Carbon makes
4 bonds.


⫸ What defines a hydrocarbon? Answer: Contains only hydrogen and
carbon atoms.


⫸ What are alkanes? Answer: Hydrocarbons that contain only single C-
C bonds.