Counting Atoms and Molecules

Look at the picture. This is a molecule of ammonia, which we use for cleaning. How many atoms are in it? (The total number, not how many types)

• One

• Two

• Three

• Four

Tags

NGSS.MS-PS1-1

How many atoms of Hydrogen are in this compound?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-1

How many total atoms in the compound?

• 3

• 5

• 6

• 4

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NGSS.MS-PS1-1

How many atoms of hydrogen are in this compound?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-1

How many atoms of hydrogen are in C₆H₁₂O₆

• 6

• 12

• 18

• 2

Tags

NGSS.MS-PS1-1

How many atoms of oxygen are in

Fe₂O₃

• 6

• 3

• 18

• 2

Tags

NGSS.MS-PS1-1

Select the chemical formula for this molecule?

• B₁F₃

• BF

• BF₃

• FB

Tags

NGSS.MS-PS1-1

What is the chemical formula for this molecule?

• H₁F₂

• H₁F₁

• HF

• HeF

Tags

NGSS.MS-PS1-1

What is the chemical formula for this molecule?

• N₂He₄

• NeH₃

• N₂H₄

• N₂H₂

Tags

NGSS.MS-PS1-1

A substance made up of atoms of two or more different elements joined by chemical bonds

• Molecule

• compound

• polar covalent bond

• nonpolar covalent bond

Tags

NGSS.MS-PS1-1