Pure Substances and Mixtures

Front

Which of the following is a pure substance? Saltwater, Oxygen gas, Salad, Sand and iron filings

Back

Oxygen gas

Front

Which of the following is a homogeneous mixture? Oil and water, Air, Sand and gravel, Salad

Back

Air

Front

Which of the following is a heterogeneous mixture? Vinegar, Saltwater, Salad, Sugar solution

Back

Salad

Front

What best describes a solution?

Back

A mixture where the components are uniformly distributed

Front

Which of the following is an example of a pure substance? Milk, Carbon dioxide, Soil, Orange juice

Back

Carbon dioxide

Front

Which of the following is NOT a characteristic of a homogeneous mixture?

• Uniform composition
• Components are not easily distinguishable
• Can be separated by physical means
• Components are easily distinguishable

Back

Components are easily distinguishable

Front

Characteristic of a heterogeneous mixture? Options: Uniform composition, Components are not easily distinguishable, Components are easily distinguishable, Cannot be separated by physical means

Back

Components are easily distinguishable

Front

Which of the following is an example of a homogeneous mixture? Salad, Saltwater, Sand and iron filings, Oil and water

Back

Saltwater

Front

Which of the following is a pure substance? Air, Water, Soil, Milk

Back

Water

Front

Which of the following is an example of a heterogeneous mixture? Vinegar, Air, Sand and gravel, Saltwater

Back

Sand and gravel