Properties of Matter Exam Practice

An unknown solid is placed on a scale and has a mass of 2.5 grams. The solid then displaces 35 mL of water in a graduated cylinder. Find the unknown solid’s density.

• 0.071 g/mL

• 14 g/mL

• 37.5 g/mL

• 90 g/mL

Jenny blends together water, lemon juice and sugar in a pitcher. She has made a

• compound

• pure substance

• homogeneous mixture

• heterogeneous mixture

Jenny blends together water, lemon juice and sugar in a pitcher. The lemon juice is a _______.

• solute

• solvent

• solution

• solutbility

Jenny blends together water, lemon juice and sugar in a pitcher. The water is a _______.

• solute

• solvent

• solution

• solutbility

Determine the identity of a cube of metal that measures 1.2 cm on each side and has a mass of 15.4 grams.

• Gold

  19.3 g/cm3

• Silver

  9.1 g/cm3

• Nickel

  8.9 g/cm3

• Zinc

  7.1 g/cm3

CO₂, NaCl, and HCl may all be classified as

• elements

• compounds

• homogeneous mixtures

• heterogeneous mixtures

black coffee is classified as

• elements

• compounds

• homogeneous mixtures

• heterogeneous mixtures

hot chocolate with whipped topping is classified as

• elements

• compounds

• homogeneous mixtures

• heterogeneous mixtures

Oxygen (O₂) is classified as

• element

• compounds

• homogeneous mixtures

• heterogeneous mixtures

Which of the following is not an example of a physical change?

• Cutting a piece of string in half.

• Crumpling a piece of paper into a ball

• Freezing water into an ice cube.

• Letting the food in your lunch box rot in your locker.