PAPER 2026 QUESTIONS WITH ANSWERS
GRADED A+
◉ Rate expression. Answer: The mathematical representation of the
change in species over time during a chemical reaction
◉ Average rate of reaction. Answer: Changes in concentration
throughout the reaction
◉ Instantaneous rate. Answer: Rate at which a reaction is proceeding at
a specific time
◉ Initial rate. Answer: The instantaneous rate of a reaction at time zero
◉ What do lowercase variables stand for in rate expression. Answer:
Coefficients
◉ Factors that affect the rate of chemical reaction. Answer: Chemical
nature, physical states, temperature, concentration, presence of a catalyst