Test Review Unit 1 & 2

Convert 5 kilometers to meters.

• 50 meters

• 500 meters

• 5000 meters

• 50000 meters

How many significant figures are in the number 0.004560?

• 3

• 4

• 5

• 6

Which of the following is a pure substance?

• Air

• Saltwater

• Carbon dioxide

• Sand

Which of the following is an example of a physical property?

• Flammability

• Reactivity with acid

• Melting point

• Ability to rust

Which of the following is an example of a chemical property?

• Color

• Density

• Boiling point

• Reactivity with oxygen

Calculate the density of an object with a mass of 10 grams and a volume of 2 cm³.

• 2 g/cm³

• 5 g/cm³

• 10 g/cm³

• 20 g/cm³

Convert 2500 milliliters to liters.

• 0.25 liters

• 2.5 liters

• 25 liters

• 250 liters

How many significant figures are in the number 123.450?

• 4

• 5

• 6

• 7

Which of the following is a mixture?

• Water

• Oxygen

• Brass

• Carbon monoxide

Which of the following is a physical change?

• Burning wood

• Rusting iron

• Melting ice

• Baking a cake