chemistry key words - rate of reactions

Question 1

rate of reactions

Answer 1

he speed at which a chemical reaction takes place

Question 2

Collision Theory

Answer 2

Particle theory states that chemical reactions occur only when the reactant particles collide with sufficient energy to react

Question 3

Reactant

Answer 3

a substance that takes part in and undergoes change during a reaction.

Question 4

Reactant

Answer 4

a substance that takes part in and undergoes change during a reaction

Question 5

Product

Answer 5

a substance that is present at the end of a chemical reaction

Question 6

Particles

Answer 6

mall localized object which can be described by several physical or chemical properties, such as volume, density, or mass.

Question 7

Temperature

Answer 7

a measure of the average amount of energy of motion, or kinetic energy, a system contains

Question 8

Concentration

Answer 8

the quantity of solute present in a given quantity of solution

Question 9

Surface area

Answer 9

a measure of the total area that the surface of the object occupies

Question 10

catalyst

Answer 10

a substance that changes the rate of a chemical reaction but is itself unchanged at the end of the process

Question 11

Pressure

Answer 11

continuous physical force exerted on or against an object by something in contact with it.

Question 12

Activation Energy

Answer 12

he minimum energy required for a reaction to occur.