Pure substances

What is the definition of a pure substance?

• An element or compound that is mixed with other elements or compounds.

• A solution containing only two types of compound.

• A single element or compound that is not mixed with any other substances.

Tags

NGSS.MS-PS1-4

An _______________ is made up of one or more of the same kind of atom chemically combined.

• atom

• element

• molecule

• compound

Tags

NGSS.MS-PS1-1

A _____________ contains a variety of elements and compounds that are not chemically combined with each other.

• compound

• element

• molecule

• mixture

A __________________ is a substance that has definite physical and chemical properties such as appearance, melting point, and reactivity.

• mixture

• pure substance

• compound

• element

Which is an example of a container filled with a pure substance?

• a glass of iced tea

• a bucket of salt water

• a tire filled with air

• a balloon filled with helium

What type of substance is pictured?

• element

• compound

• mixture

• solution

Tags

NGSS.MS-PS1-1

What type of substance is pictured?

• element

• compound

• mixture

Tags

NGSS.MS-PS1-1

Which is a mixture of compounds?

• 
• 
• 
• 

Which is a pure substance?

• 
• 
• 
• 

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-4

Mixtures are pure substances.

• True

• False