Question 1 (5 points)

Question

Match each definition to its correct vocabulary word. This question covers the vocabulary in Unit 4.

Column A
1.
The speed of change of a chemical reaction over time.:
The speed of change of a chemical reaction over time.
2.
The substances that are present at the beginning of a chemical reaction.:
The substances that are present at the beginning of a chemical reaction.
3.
A process in which the original substances (reactants) are converted into one or more different substances (products).:
A process in which the original substances (reactants) are converted into one or more different substances (products).
4.
A measure of the average kinetic energy of particles of matter.:
A measure of the average kinetic energy of particles of matter.
5.
The substances that are present at the end of a chemical reaction.:
The substances that are present at the end of a chemical reaction.
6.
A theory that states that atoms, ions, and molecules must collide in order to react.:
A theory that states that atoms, ions, and molecules must collide in order to react.
7.
A substance that speeds up a chemical reaction by lowering the activation energy.:
A substance that speeds up a chemical reaction by lowering the activation energy.
8.
The amount of a substance that is dissolved in a given amount of another substance.:
The amount of a substance that is dissolved in a given amount of another substance.
9.
The attractive force between atoms, ions, or molecules that results in the formation of chemical compounds.:
The attractive force between atoms, ions, or molecules that results in the formation of chemical compounds.
10.
The minimum amount of energy that must be added to a reaction for it to take place.:
The minimum amount of energy that must be added to a reaction for it to take place.
11.
Energy that particles have because of their motion.:
Energy that particles have because of their motion.
Column B
a.Concentration
b.Products
c.Chemical Bond
d.Reaction rate
e.Kinetic energy
f.Collision theory
g.Temperature
h.Reactants
i.Chemical reaction
j.Catalyst.
k.Activation energy

Answer 1

1. d. Reaction rate
2. h. Reactants
3. i. Chemical reaction
4. e. Kinetic energy
5. b. Products
6. f. Collision theory
7. j. Catalyst
8. a. Concentration
9. c. Chemical Bond
10. k. Activation energy
11. g. Temperature