Pure Substances & Mixtures

A pure substance that cannot be broken down into other substances by chemical or physical means. 

• compound          
• atom
• mixture 
• element

This diagram represents a _____.

• pure substance that is a compound
• mixture of elements
• pure substance that is an element
• mixture of compounds

Tags

NGSS.MS-PS1-1

Can a mixture be separated? 

• No
• Yes
• Only sometimes

The basic unit of matter is

• a mixture
• a substance
• an atom
• a compound

Tags

NGSS.MS-PS1-1

A substance that contains only one type of atom is a(n)

• compound
• element
• heterogeneous mixture
• homogeneous mixture

This picture represents which of the following?

• Element
• Compound
• Mixture

Tags

NGSS.MS-PS1-1

A pure substance...

• is an element or a compound
• is an element or a mixture
• is a compound or a mixture
• is a mixture

Tags

NGSS.MS-PS1-1

NaHCO₃ is an example of —

• an abbreviation
• a compound
• a mixture
• an element

Tags

NGSS.MS-PS1-1

Substances formed from atoms of two or more elements are called

• mixtures

• compounds

• colloids

• elements

Describe this sample

• Pure element

• Pure compound

• Mixture of elements

• Mixture of compounds

Tags

NGSS.MS-PS1-1