Significant figures and density

How many significant figures does the following number have: 2.040x10²

• 6
• 4
• 3
• 2

How many significant figures does the following number have: 0.998005

• 9
• 10
• 6
• 5

How many significant figures does the following number have: 100.00210

• 7
• 5
• 10
• 8

How many significant figures does the following number have: 56.040

• 2
• 3
• 4
• 5

How many significant figures does 1.90 × 10⁵

• 3
• 4
• 6
• ⁸⁸⁸8

Which of the following measurements contains two significant figures?

• 0.004 00 L
• 0.004 04 L
• 0.000 44 L
• 0.004 40 L

What is the density of an object having a mass of 8.0 g and a volume of 25 cm³?

• 0.32 g/cm³
• 2.0 g/cm³
• 3.1 g/cm³
• 200 g/cm³

Jack has a rock. The rock has a mass of 14g and a volume of 2cm³. What is the density of the rock?

• 7 mL
• 7 g/cm³
• 28 g/cm³
• 1/7 g/cm³

Which liquid is the least dense?

• oil
• water
• syrup 
• plastic bottle

What is the volume of Object X?

• 10.0 cm³
• 15.0 cm³
• 20.0 cm³
• 25.0 cm³