What changes when a catalyst is added?  Show the change on the

Question 16 of 42 Which of the following is not one of the five factors that influence reaction rates? O The temperature that the reaction takes place. O The presence of catalyst or inhibitors in the reaction. The concentration or pressures of the reactants. The chemical nature of the reactants. O The value of enthalpy for the overall reaction.

Which would likely increase the rate of a chemical reaction? A. Cooling the reaction mixture. B. Decreasing the concentration of the reactants. C. Decreasing the surface area of the reactants. D. Adding a catalyst to the reaction mixture.

Which of the following terms is described as the amount of energy reactants are required to absorb to product products? A)kinetic energy B)potential energy C)catalyst energy D)activation energy

Because there is stability in reactants, A) before two reactants can form products, they must overcome an activation energy B) they can form products if one reactant loses some activation energy C) they can never form products, unless there in a huge input of energy D) they can never form products

Quèstion 1 According to collision theory, which condition(s) must be met in order for molecules to react? 1. The reacting molecules must collide with sufficient energy to initiate the process of breaking and forming bonds 2. A catalyst must be in contact with the reacting molecules for a reaction to occur. 3. The reacting molecules must collide with an orientation that can lead to rearrangement of the atoms. O a. 1 and 3 O b.1 only O c. 1 and 2 O d.3 only O e. 2 only

What is the reactant side? Left or right?

A is a substance that increases the rate of a reaction without being used up during the reaction. O catalyst O product O reactant O solute

3. If you were running a reaction and wanted it to go faster, what three things might you try to  accomplish this goal?

The reaction A(g) + 2B(g)    C(g) was allowed to come to equilibrium. The initial amounts of reactants placed into a 5.00 L vessel were 1.0 mol A and 1.8 mol B. After the reaction reached equilibrium, 1.0 mol of B was found. Calculate Kc for this reaction. Round off the answer to two significant digits. Group of answer choices 0.060 5.1 17 19 25