Chemistry Chapter 6 And 7

Question 1

What is the term for changing from a solid to a gas

Answer 1

Sublimation

Question 2

What is the term for changing from a liquid to a solid

Answer 2

Freezing

Question 3

What is the term for changing from a gas to a liquid

Answer 3

Condensation

Question 4

What is the term for changing from a solid to a liquid

Answer 4

Melting

Question 5

What is the term for changing from a gas to a solid

Answer 5

Deposition

Question 6

What is the term for changing from a liquid to a gas

Answer 6

Evaporation

Question 7

What are the characteristics of a chemical change?

Answer 7

• Seeing a change in colour
• smelling a gas or seeing bubbles
• seeing a new solid forming in a clear solution
• Seeing light or feeling a change in temperature

Question 8

What is expansion?

Answer 8

An increase in size

Question 9

What is evaporation?

Answer 9

The change of state where a liquid changes to a gas at the surface of the liquid

Question 10

What is combustion?

Answer 10

Any chemical reaction where a substance burns in oxygen to produce light and heat

Question 11

What is a chemical reaction?

Answer 11

The process of rearranging atoms in substances to form different substances

Question 12

What is a word equation?

Answer 12

A simple chemical equation where chemicals are represented by their names

Question 13

What term best describes this?:

A change where no new substance is produced

Answer 13

Physical change