NSC / Matric Rate and Extent of Reaction — practice questions
6 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice NSC / Matric Rate and Extent of Reaction in the app →What does the average rate of a chemical reaction describe?According to collision theory, what must reactant particles do before a reaction can happen?The same mass of marble reacts with acid faster as a powder than as large chips. Why?How does a catalyst make a reaction go faster?A reaction that gives off a gas is followed by weighing the flask over time. Why must the flask stay open?Magnesium reacts with hydrochloric acid and 0.30 mol of hydrogen gas is collected in 2.5 minutes. What is the