Pure Substances Elements and Compounds Models

In the diagrams provided, the circles of different colors represent the atoms of different elements. Which diagram represents a mixture?

• I

• II

• III

• IV

Which beaker contains only one type of element?

• A

• B

• C

• D

Tags

NGSS.MS-PS1-1

Which beaker contains a compound?

• A

• B

• C

• D

Tags

NGSS.MS-PS1-1

Which beaker(s) contain a pure substance? (check all that apply)

• A

• B

• C

• D

Tags

NGSS.MS-PS1-1

Which is the best description of one particle of table salt (NaCl)?

• mixture

• compound

• element

Tags

NGSS.MS-PS1-1

Classify the sample

• Pure substance
• Mixture

Tags

NGSS.MS-PS1-1

Classify the sample

• Element
• Compound

Tags

NGSS.MS-PS1-1

Classify the sample

• Pure Substance
• Mixture of Elements
• Mixture of Compounds

What is a pure substance made of two or more elements that are chemically combined called?

• A. element

• B. compound

• C. mixture

Classify the Sample.

• Pure Substance

• Mixture of Elements

• Mixture of Compounds

• Mixture of Elements and Compounds

Tags

NGSS.MS-PS1-1