What's the Matter? Pure Substance or Mixture

Which if the following is not a physical state of matter?

• element

• solid

• liquid

• gas

A _________________ mixture is one where the substances are evenly spread throughout.

• heterogeneous

• homogeneous

• pure substance

Muddy water is an example of a

• solution

• suspension

• colloid

Fruit Loops, pizza, and Skittles are examples of ____________________ mixtures.

• heterogeneous

• homogeneous

• pure

A cup of sugar is dissolved in water.

Fill in the blank: The ________ is the solvent and the ________ is the solute.

• water, sugar

• sugar, water

• sugar,sugar

• water,water

Which of the following is an example of a pure substance?

• Water (H₂0)

• Helium (He)

• Ammonia (NH₃)

• All of the above

A gold nugget with a density of 19.3g/cm³ was lowered into a graduated cylinder containing 15 mL of water. The water level in the cylinder rose to 20mL. What is the mass of the gold nugget?

• 96.5 g

• 54.3 g

• 14.3 g

• 1 g

Which liquid is the least dense?

• oil

• water

• syrup

• plastic bottle

Calculate the density of the cube.

• 2 g/cm³
• 4 g/cm³
• 6 g/cm³
• 8 g/cm³

An object with which of the following densities will float on water?

• 0.7 g/cm³

• 1.2 g/cm3

• 3.5 g/cm³

• 11.4 g/cm³