Reaction Rate

Question 1

Which term refers to the speed at which reactants are converted into products?

Revolt · Accepted Answer

reaction rate

Question 2

Which applies to the collision theory?

Revolt · Accepted Answer

Particles need to collide in order to react.

Question 3

Which topic is commonly used to explain activation energy and how chemical reactions happen?

Revolt · Accepted Answer

collision theory

Question 4

A change in which factor will affect the rate of reaction only when gases are involved?

Revolt · Accepted Answer

pressure

Question 5

Which will cause an increase in the reaction rate between molecules?

Revolt · Accepted Answer

Molecules collide more frequently.

Question 6

Which best explains why sawdust burns more quickly than a block of wood of equal mass under the same conditions?

Revolt · Accepted Answer

More molecules in the sawdust can collide with oxygen molecules.

Question 7

The production of water proceeds according to the following equation.2H2(g) + O2(g) 2H2O(g)Which describes a way to speed up the collisions between hydrogen and oxygen molecules to produce more water?

Revolt · Accepted Answer

Place the reactants in a smaller container.

Question 8

A solid reactant is placed into a beaker of a warm water. The liquid vigorously bubbles as the solid dissolves into the solution. What will most likely happen if the temperature of the liquid is slightly reduced?

Revolt · Accepted Answer

Fewer bubbles will be produced because of fewer collisions of reactant molecules.

Question 9

The diagram below shows the movement of particles.What does this piece of evidence best support?

Revolt · Accepted Answer

the collision theory

Question 10

Consider the reaction below.Which is most likely the effect to the forward reaction if there is an increase in pressure of the system?

Revolt · Accepted Answer

The reaction rate decreases.

Reaction Rate Answers

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