Chem. Unit 1 Review part 2

67 seconds + 10.1 seconds = ?

• 77.1

• 77

• 70

• 80

1.0 kg - 0.001 kg = ?

• 0.999 kg

• 0.99 kg

• 0.9 kg

• 1.0 kg

5,000 cm + 870 cm = ?

• 5,000 cm

• 5,870 cm

• 6,000 cm

• 6,870 cm

How many significant figures: 0.012 km

• 1
• 2
• 3
• 4

How many significant figures: 100.000 cL

• 1
• 3
• 5
• 6

How many significant figures: 4.20 cm

• 1
• 2
• 3
• 4

Calculate 0.020 cm x 50 cm x 11.1 cm and give your answer with the correct number of significant figures.

• 10 cm³
• 11.1 cm³
• 11 cm³
• 11. cm³

What is the formula for density?

• density = mass x volume
• density = mass / volume
• density = mass + volume
• density = mass - volume

Frank has an eraser. It has a mass of 4g, and a volume of 2cm³. What is its density?

• 8 g/cm³
• 2 g/cm³
• 1/2 g/cm³
• 24 g/cm³

Frank has a paper clip. It has a mass of 9g and a volume of 3cm³. What is its density?

• 3 g/cm³
• 1/3 g/cm³
• 27 g/cm³
• 39 g/cm³