Pure Substances, and Mixtures Quiz

What is a mixture?

• A combination of two or more substances that are not chemically bonded together.

• A single substance that is not chemically bonded.

• A combination of two or more substances that are chemically bonded together.

What is a compound?

• A substance formed by the physical combination of two or more elements

• A substance formed by the chemical combination of two or more elements in indefinite proportions

• A substance formed by the chemical combination of two or more elements in definite proportions.

• A substance formed by the biological combination of two or more elements

Tags

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What is a homogeneous mixture?

• A mixture that has a uniform composition throughout

• A mixture that contains only one substance

• A mixture that has different compositions in different parts

• A mixture that is easily separated into its components

What is a heterogeneous mixture?

• A mixture that has a uniform composition throughout.

• A mixture that consists of only one substance or phase.

• A mixture that cannot be separated into its components.

• A mixture that consists of visibly different substances or phases like soil or fruit salad.

Two of examples are pure substance?

• Water

• Gas

• Soil

• Oxygen

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Which of the following is an example of a homogeneous mixture?

• Saltwater

• Granola bar

• Milk

• Oil and water

Which of the following is an example of a heterogeneous mixture?

• Salad

• Soup

• Orange juice

• Milk

What is the smallest unit of an element?

• Molecule

• Atom

• Organism

• Cell

Tags

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Which of the following is a pure substance?

• Oil

• Sand

• Oil and Vinger

• Water

Which of the following is a mixture?

• Salt
• Trail mix
• Purified water
• Sugar