Unit 3 Test Retake

This picture represents...

• An element

• A molecule

• A mixture

• A compound

The circles represent atoms. Each color is a different type of atom. This image represents:

• An element

• A mixture

• A compound

• An atom

Tags

NGSS.MS-PS1-1

Which of these represent a pure substance that cannot be broken down into another substance?

• X

• Y

• Z

• W

In this diagram, W represents...

• An element

• A molecule

• A compound

• A mixture

Tags

NGSS.MS-PS1-1

In this diagram, what do each individual circle represent?

• An element

• An atom

• A compound

• A mixture of elements and compounds

Which example is a compound?

• N₂

• O₂

• Cu

• H₂O₂

Tags

NGSS.MS-PS1-1

Salt and pepper is an example of...

• An element

• A compound

• A molecule

• A mixture

How many total atoms are is CO₄?

• 1

• 4

• 5

• 6

How many total atoms are in NO?

• 4

• 2

• 1

• 0

This diagram represents...

• An element

• A molecule

• A compound

• A mixture