Pure substances vs mixtures

Elements are pure substances.

• True

• False

Compounds are pure substances.

• True

• False

Mixtures are pure substances.

• True

• False

The particle diagram shown is a:

• pure substance

• mixture

The particle diagram shown is a:

• pure substance

• mixture

Which picture(s) represents a mixture between two elements?

• A

• B

• C

• A and C

Which picture(s) represents a mixture between an element and a compound?

• A

• B

• D

• B and D

Which picture represents a mixture that is 75% compound and 25% element?

• A

• B

• C

• D

What is this?

aluminum (Al)

• element

• compound

• mixture

What is this?

methane (CH₄)

• element

• compound

• mixture