How many hydrogen atoms does this molecule contain?

• 6

• 2

• 9

• 1

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NGSS.MS-PS1-1

Molecule D contains 1 carbon atom and

• 4 hydrogen atoms

• 3 hydrogen atoms

• 2 hydrogen atoms

• 5 hydrogen atoms

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NGSS.MS-PS1-1

Which model best represents a molecule made of one nitrogen atom and 3 hydrogen atoms?

• A

• B

• C

• D

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NGSS.MS-PS1-1

How many different types of elements are shown?

• 2

• 3

• 18

• 12

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NGSS.MS-PS1-1

How many molecules are shown?

• 5

• 10

• 2

• 8

How many elements are shown here?

• 1

• 2

• 9

• 18

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NGSS.MS-PS1-1

This picture is of ________. (Select all that apply)

• an element

• a compound

• molecules

• atoms

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NGSS.MS-PS1-1

This picture is of _______. (Select all that apply)

• an element

• compounds

• atoms

• molecules

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NGSS.MS-PS1-1

This picture is of ________. (Select all that apply)

• an atom

• a molecule

• a compound

• an element

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NGSS.MS-PS1-1

ANY two (or more) atoms chemically combined will always be:

• an atom

• a compound

• a mixture

• a molecule

Tags

NGSS.MS-PS1-1