Midterm Review (Matter and Atomic Structure)

1. Define matter

• Anything the has mass and takes up space

• Wrong answer

• Wrong answer

Use your notes on density.

2. Density

Given that water has a density of 1.0 g/mL, which of the following would float in water?

• A. aluminum (d = 2.7 g/mL)

• B. styrofoam (d = 0.906 g/mL)

• C. gold (d = 19.3 g/mL)

Use your notes to find the density formula TRIANGLE.

Density Practice Problems

a) What is the density of a metal that has a volume of 10.0mL and mass of 40.0g?

• 0.250 g/mL

• 4.00 g/mL

• 20.0 g/mL

• 400.0 g/mL

Density Practice Problems

b) What is the volume of a metal that has a density of 20.0g/mL and mass of 60.0g?

• 0.330 mL

• 3.00 mL

• 80.0 mL

• 1200 mL

Density Practice Problems

c) The density of aluminum is 2.70 g/cm³. What is the mass of 235 mL of aluminum?

• 0.011 g

• 87.0 g

• 118 g

• 635 g

Density Practice Problems

Finish d-f on your own. Then choose "done"

• done

• not done

• not done

Use your notes to correctly read these graduated cylinders.

• 67.4 mL and 32 mL

• 65.0 mL and 35.0 mL

• 67.4 mL and 32.6 mL

Use your notes to choose the correct answer. Also circle it on your paper.

• Student A

• Student B

• Student C

• Student D

Fill in the blanks on your paper.

• accurate not precise

• precise not accurate

Use your notes to fill blanks. Then choose "done"

• done

• not done

• not done