CHEM 120 EXAM 2 INTRODUCTION TO
GENERAL ORGANIC AND BIOLOGICAL
CHEMISTRY NEW UPDATE FINAL STUDY
GUIDE 2026 QUESTIONS WITH ANSWERS
GRADED A+
⫸ In a higher reaction rate, the concentration of the reactant decreases...
Answer: quickly
⫸ in a slower reaction rate, the reactant concentration decreases...
Answer: slowly
⫸ what 4 variables can we control when it comes to reaction rates?
Answer: concentration of reactants, physical state, temperature of
reaction, and use of a catalyst.
⫸ In regards to concentration, is the relationship between reaction rate
and concentration proportional? Why or why not? Answer: Yes, the
reaction rate of a reaction and the concentration is proportional. The
reason being that the more molecules there are, the more collisions
between molecules, speeding up the reaction.
⫸ Why does the physical state of 2 reactants matter in a chemical
reaction? Answer: This matters because when 2 substances are in 2
different states of matter, contact between the molecules can only
happen on the interface between the 2 different phases.
GENERAL ORGANIC AND BIOLOGICAL
CHEMISTRY NEW UPDATE FINAL STUDY
GUIDE 2026 QUESTIONS WITH ANSWERS
GRADED A+
⫸ In a higher reaction rate, the concentration of the reactant decreases...
Answer: quickly
⫸ in a slower reaction rate, the reactant concentration decreases...
Answer: slowly
⫸ what 4 variables can we control when it comes to reaction rates?
Answer: concentration of reactants, physical state, temperature of
reaction, and use of a catalyst.
⫸ In regards to concentration, is the relationship between reaction rate
and concentration proportional? Why or why not? Answer: Yes, the
reaction rate of a reaction and the concentration is proportional. The
reason being that the more molecules there are, the more collisions
between molecules, speeding up the reaction.
⫸ Why does the physical state of 2 reactants matter in a chemical
reaction? Answer: This matters because when 2 substances are in 2
different states of matter, contact between the molecules can only
happen on the interface between the 2 different phases.
