Pure Substances: Elements and Compounds

Pure substances are divided into two categories

• elements and mixtures

• elements and compounds

• compounds and mixtures

• compounds and pure substances

Pure substance that is the more pure is

• elements

• compounds

• mixtures

• atom

This chemical formula is called an

• atom

• element

• compound

• substance

Tags

NGSS.MS-PS1-1

Which of the following answer choices is NOT a compound?

• NaCl

• HMg

• Si

• PbSO

Tags

NGSS.MS-PS1-1

An element cannot be separated

• with an atom

• socially

• chemically

• physically

Tags

NGSS.MS-PS1-5

Which answer choice is an element?

• X

• Y

• W

• Z

Tags

NGSS.MS-PS1-1

The colors on this picture gives a clue this image is most likely a

• element

• compound

• mixture

• molecule

Tags

NGSS.MS-PS1-1

A substance with 1 capital letter or 1 capital letter and a lower case letter is a

• atom

• new substance

• compound

• element

Tags

NGSS.MS-PS1-1

Which of the following answer choices is a compound

• N

• Si3

• H2SO4

• Sb

Tags

NGSS.MS-PS1-1

A__________ has a least two or more capital letters.

• element

• compound

• mixture

• solution