Key Vocabulary

Question 1

Catalyst

Answer 1

A substance that speeds up the rate of a chemical reaction without undergoing any permanent chemical change.

Question 2

Chemical Reaction

Answer 2

A process that involves rearrangement of the molecular or ionic structure of a substance.

Question 3

Reactant

Answer 3

A substance that changes during a chemical reaction.

Question 4

Product

Answer 4

A substance produced during a chemical reaction.

Question 5

Combustion

Answer 5

The chemical reaction of a substance with oxygen, involving the production of heat and light.

Question 6

Lattice

Answer 6

Regularly arranged particles (means that it is a solid).

Question 7

Effervescence

Answer 7

Bubbles, fizz.

Question 8

Subatomic

Answer 8

Inside or under an atom.

Question 9

Atomic number

Answer 9

The number of protons in an atom.

Question 10

Atomic mass

Answer 10

The number of protons plus the number of neutrons inside an atom.

Question 11

Oxidation

Answer 11

A reaction involving a substance gaining oxygen.

Question 12

Alkaline Oxide

Answer 12

Metal reacted with Oxygen (pH 8-14)

Question 13

Acidic Oxide

Answer 13

Non-metal reacted with Oxygen (pH 1-6)

Question 14

Thermal Decomposition

Answer 14

A chemical reaction woth only one reactant and heat.

Question 15

Conservation of Mass

Answer 15

This means the total mass of reactants must always equal the final mass of products because matter cannot be created or destroyed.