CPC Ch 2 Vocabulary

Which separation technique produces pure solid particles of a substance from a solution that contains the dissolved substance?

• Filtration

• Distillation

• Crystallization

• Chromatography

Match the following techniques with their descriptions:

• Forms solid crystals from a solution

• Filtration

• Uses a porous barrier to separate a solid from a liquid

• Crystallization

• Changes a solid directly into a gas without passing through the liquid state

• Distillation

• Separates substances based on their boiling points

• Sublimation

The energy-requiring process by which a solid changes directly to a gas without first becoming a liquid is called (a)   .

• Filtration
• Distillation
• Crystallization
• Sublimation

Tags

NGSS.MS-PS1-4

Which technique can be used to physically separate most homogeneous mixtures based on the differences in the boiling points of the substances?

• Filtration

• Distillation

• Crystallization

• Chromatography

Which technique is used to separate the components of a mixture based on the tendency of each component to travel or be drawn across the surface of a fixed substrate?

• Filtration

• Distillation

• Crystallization

• Chromatography

A chemical combination of two or more different elements; can be broken down into simpler substances by chemical means and has properties different from those of its component elements.

• Element

• Compound

• Mixture

• Solution

A physical blend of two or more pure substances in any proportion in which each substance retains its individual properties; can be separated by physical means.

• Element

• Compound

• Mixture

• Solution

A pure substance that cannot be broken down into simpler substances by physical or chemical means is called (a)   .

• Element
• Compound
• Mixture
• Solution

Match the following terms with their definitions.

• A substance formed when two or more chemical elements are chemically bonded together.

• Solution

• A uniform mixture that can contain solids, liquids, or gases; also called a homogeneous mixture.

• Element

• A substance that cannot be broken down into simpler substances by chemical means.

• Compound

• A combination of two or more substances that are not chemically bonded and can be separated by physical means.

• Mixture

A property that remains the same no matter how much of a substance is present is called a(n) ______.

• chemical property

• extensive property

• molecular property

• intensive property

• physical property