Which contains only elements?

• A

• B

• C

• D

Which contains a pure substance? (Choose all)

• A

• B

• C

• D

Which contains a mixture? (Choose all)

• A

• B

Which contains a solution? (Choose all)

• A

• B

• None are solutions

Which contains a solid? (Choose all)

• A

• B

• C

• D

Which contains a pure substance? (Choose all)

• A

• B

• C

• D

What type of change is this?

• Chemical

• Melting

• Evaporation

• Condensation

• Sublimation

Which contains only elements (no compounds)? (Choose all)

• A

• B

• C

What type of change?

• Chemical

• Evaporation

• Condensation

• Sublimation

• Melting

Which is a heterogeneous mixture? (Choose all)

• 1

• 2

• 3

• 4