Question

Please answer and explain the below questions(ignore formatting):

Question 1:

In order for the outside of your car to react with the oxygen and moisture in the air, there must be a sufficient amount of

reactants

activation energy

products

molecules

potential energy

Question 4:

For a given set of reactants, to speed up a reaction process, you could

decrease the activation energy.

change the reaction pathway.

increase the concentration.

all of the above.

have more collisions in a given time period.

Question 5

If the concentration of the product goes from 1.24 M to 0.12 M in 40 seconds, what is the rate of the reaction?

0.099 M/s

0.20 M/s

0.040 M/s

0.028 M/s

0.13 M/s

Question 6:

If two containers with hydrogen gas and oxygen gas have equal concentrations of each gas at standard temperature and pressure, and the reaction to produce water is complete in 25 seconds in one while the reaction requires 50 seconds in the other, what could account for the difference in rate?

temperature

presence of a catalyst

pressure

concentration of reactants

nature of reactants

Question 7:

When considering the phase of reactants in a closed container, heating liquids to a gas should result in the fastest rate of reaction because of an increase in

number of collisions.

available activation energy.

surface area.

pressure.

all of the above.

Question 9:

In order for a reaction to be reversible, the reaction must be contained in such a way that the concentration of products and the build-up of energy

makes more products than reactants.

stops the reaction from occurring.

causes the reactants to begin to return to the original products.

causes the products to begin to return to the original reactants.

causes the reactants to stick to the side of the container.

Question 10:

When a reaction achieves a dynamic equilibrium, it means the reverse reaction rate

has stopped.

become less than the reverse reaction rate.

become equal to the forward reaction rate.

become faster than when the reaction started.

no longer exists.

Answer 1