Pure Substances & Mixtures

Which classification of matter is composed of two or more substances which are physically combined?

• atoms

• pure substances

• mixtures

• elements

Which of the following is INCORRECT about pure substances?

• formed by combining two or more components

• have definite composition

• all elements are pure substances

• composed of only one kind of material

sugar

• pure substance

• mixture

Pancake batter

• pure substance

• mixture

Which of the following is NOT a mixture?

• milk

• lemonade

• vegetable salad

• aluminum

Which describes homogeneous mixtures?

• composed of components which are not dissolved

• has only 1 phase visible

• has 2 or more phases visible

• the components remain recognizable

Which type of mixture has particles which are uniformly distributed?

• Homogeneous

• Heterogeneous

What type of mixture does this diagram represent?

• Homogeneous

• Heterogeneous

Which of the following examples are heterogeneous mixtures?

• soda and carbonated drinks

• air and sweat

• blood and concrete mix

• coffee drink and lemonade

Rainwater

• Homogeneous

• Heterogeneous