CIA 1 Unit 1 Review

How many significant figures does the following number have?
0.00345

• 6
• 5
• 3
• Ambiguous: 3,4,5, or 6

How many significant figures does the following number have: 0.00204

• 6
• 4
• 3
• 2

Calculate 923 g ÷ 20312 cm³ and give your answer with the correct number of significant figures.

• 0.04 g/cm³
• 0.045 g/cm³
• 0.0454 g/cm³
• 0.05 g/cm³

Calculate 12.47 m ÷ 3.2 s and give your answer with the correct number of significant figures.

• 4 m/s
• 3.9 m/s
• 3.90 m/s
• 3.897 m/s

Freshly brewed black coffee

• Heterogeneous

• Homogeneous

Lucky Charms

• Heterogeneous

• Homogeneous

Air

• Heterogeneous
• Homogeneous

Are made from a combination of 2 or more elements in a constant ratio...

• Atome
• Mixture
• Compounds
• Elements

NaCl

• Element
• Compound
• Homogeneous Mixture
• Heterogeneous Mixture

How many inches are in 1 mile? (5280ft = 1mi; 12in = 1ft)

• 66330in

• 63360in

• 63660in

• 63066in