Unit 1: Matter Review

A vapor is which state of matter?

• Solid

• Liquid

• Gas

• All of the above

Which of the following is a physical change?

• Corrosion

• Evaporation

• Combustion

• Rotting of food

Which of the following is a heterogeneous mixture?

• Steel

• Air

• Salt Water

• Chocolate Chip Cookies

Which of the following is true about homogeneous mixture?

• They are known as solutions

• You can not easily see the different particles

• You can easily see the different particles

• They are always liquids

A substance that can be separated into two or more substances only by a chemical reaction is an....

• Solution

• Element

• Mixture

• Compound

Which of the following can NOT be broken down?

• Compound

• Element

• Mixture

• All of the above can be broken down

Which of the following represents a compound?

• H

• Fe

• CO₂

• O-14

Which of the following is an example of a mixture?

• Water

• Salt Water

• Salt

• Hydrogen

All of the following changes to a metal are physical changes EXCEPT ____.

• Bending

• Melting

• Rusting

• Polishing

Check all of the following that are elements

• Fe

• CO₂

• H₂O

• H

• CH₃