Which separation technique is used to separate a mixture of liquids with different boiling points?

• distillation

• filtration

• evaporation

• chromatography

Which separation technique is used to separate a solute from a solvent by heating the mixture?

• distillation

• filtration

• decantation

• evaporation

Which separation technique is used to separate different components of a mixture based on their different affinities to a stationary phase and a mobile phase?

• filtration

• distillation

• chromatography

• evaporation

What is the purpose of distillation in separation techniques?

• To separate a mixture of liquids based on their different densities.

• To separate a mixture of solids based on their different melting points.

• To separate a mixture of liquids based on their different boiling points.

• To separate a mixture of gases based on their different solubilities.

Tags

NGSS.MS-PS1-4

What is the purpose of evaporation in separation techniques?

• To separate a mixture of a solid and a liquid by vaporizing the liquid component.

• To separate a mixture of a solid and a liquid by dissolving the solid component.

• To separate a mixture of gases by condensing the less volatile component.

• To separate a mixture of two liquids by vaporizing the more volatile component.

Tags

NGSS.MS-PS1-4

What is the purpose of chromatography in separation techniques?

• To combine the components of a mixture.

• To identify the components of a mixture.

• To heat the components of a mixture.

• To separate and analyze the components of a mixture.

What is the purpose of magnetism in separation techniques?

• To separate magnetic substances from non-magnetic substances.

• To attract non-magnetic substances towards magnetic substances.

• To mix magnetic and non-magnetic substances together.

• To prevent the separation of magnetic substances from non-magnetic substances.

Which of the following is a heterogeneous mixture?

• air

• salt water

• steel

• soil

Which of the following is classified as a mixture?

• pure water

• pure air

• pure nitrogen

• pure gold

Which of the following is true about homogeneous mixtures?

• Known as solutions

• Consist of two or more phases

• Have compositions that vary

• Are always liquid