Unit 2 Test Review Matter and Atomic Structure

A single atom of sulfur (S) could be classified as a:

• Pure substance, element

• Pure substance, compound

• Homogeneous mixture

• Heterogeneous mixture

Salt water can be classified as a:

• Pure substance, element

• Pure substance, compound

• Homogeneous mixture

• Heterogeneous mixture

Soil can be classified as a:

• Pure substance, element

• Pure substance, compound

• Homogeneous mixture

• Heterogeneous mixture

Tags

NGSS.MS-ESS2-1

Air can be classified as a:

• Pure substance, element

• Pure substance, compound

• Homogeneous mixture

• Heterogeneous mixture

Calcium carbonate (CaCO3) can be classified as a:

• Pure substance, element

• Pure substance, compound

• Homogeneous mixture

• Heterogeneous mixture

Table salt (NaCl) can be classified as a:

• Pure substance, element

• Pure substance, compound

• Homogeneous mixture

• Heterogeneous mixture

Trail mix can be classified as a:

• Pure substance, element

• Pure substance, compund

• Homogeneous mixture

• Heterogeneous mixture

Pure oxygen (O2) can be classified as a:

• Pure substance, element

• Pure substance, compound

• Homogeneous mixture

• Heterogeneous mixture

Tags

NGSS.MS-PS1-1

Which of the following is the correct formula for density?

• D = m/v

• D = m x v

• D = v/m

What is the correct formula to solve for mass?

• m = d/v

• m = v/d

• m = d x v