PSB Unit 2: Matter Test

A block of aluminum occupies a volume of 18.5 cm^3 and weighs 25 g. What is its density?

• 1.35 g/cm^3
• 1.67 g/cm^3
• 2.01 g/cm^3
• 0.97 g/cm^3

Ethanol has a density of 0.7892 g/mL. Using the density formula, find the mass of a sample of ethanol that occupies a volume of 175.0 mL

• 138.11 g
• 150.03 g
• 205.36 g
• 75.36 g

Tin has a density of 7.31 g/cm3. A sample of an unknown metal is measured and found to be 2.25 cm x 1.5 cm x 2.25 cm. The mass of the sample is 27 g. Is the sample tin?

• Yes, this sample is tin
• No, this sample is not tin

The mass of the pebble shown below is 2.25 g. To find the volume, use the following formula: V = V(final) - V(initial) What is the density of the pebble?

• 2.81 g/mL
• 3.06 g/mL
• 5.02 g/mL
• 1.65 g/mL

Matter that has a definite volume and a definite shape is a _____________.

• solid
• liquid
• gas
• plasma

The amount of energy needed to change a material from a liquid to a gas is the heat of __________________.

• vaporization
• fusion
• evaporation
• condensation

When two or more substances are physically combined, the result is a(n) ___________.

• mixture
• compound
• element
• chemical change

The air that you breathe is an example of a(n) _____________ solution.

• solid
• liquid
• gaseous
• plasma

As a sample of matter is heated, its particles ______________.

• are unaffected
• move more quickly
• move more slowly
• stop moving

The most common state of matter in the universe is ______________.

• solid
• liquid
• gas
• plasma