Unit 1: Chemical Reactions - Key Words

Question 1

Name the process by which a solid is changed to a liquid

Answer 1

Melting

Question 2

What is the process by which a liquid is changed to a solid?

Answer 2

Freezing

Question 3

Name the process by which a liquid is changed to a gas

Answer 3

Evaporation

Question 4

What is the process by which a gas is changed to a liquid?

Answer 4

Condensation

Question 5

What is Sublimation?

Answer 5

A process by which a solid is changed to a gas

Question 6

What is a Physical Change?

Answer 6

It is a reversible reaction

Question 7

What is a Chemical Change?

Answer 7

It is an irreversible reaction

Question 8

What are Reactants?

Answer 8

Reactants are subtances that are reacted together in a chemical reaction. They are written before the arrow in a word equation

Question 9

What are Products?

Answer 9

Products are substances that are produced in a chemical reaction. They are written after the arrow in a word equation

Question 10

What is the meaning of Flammable?

Answer 10

It is something that burns easily