Question

Which of the following did you include in your response? Check all that apply. Prepare three test tubes containing reactant A. Prepare three test tubes containing reactant B. Add one test tube of reactant B and one unknown to one test tube of reactant A. Repeat for the other two unknowns. Time the reaction until bubbling stops. The unknown that causes the reaction to occur the quickest is the catalyst.

Answer 1

The second and fourth choice would be the answers

Answer 2

Add one test tube of reactant B and one unknown to one test tube of reactant A.

Repeat for the other two unknowns.

Time the reaction until bubbling stops.

The unknown that causes the reaction to occur the quickest is the catalyst.