Question

a. Which of the following reaction mixtures will produce hydrogen more quickly at room temperature?
(i) zinc granules + dilute nitric acid
(ii) zinc powder + dilute nitric acid

b. Give an explanation of your answer to a.

c. Suggest two other methods by which the speed of this reaction can be altered.

Answer 1

Answer:

Explanation:

zinc powder + dilute nitric acid

Decrease the temperature in Exothermic reactions (Reactions that release energy, or become hot) Add a catalyst (A substance that reduces activation energy, speeding up the reaction) Increase the concentration of reactants. Increase the concentration of catalysts