Counting Atoms Practice

How many total atoms are in the compound for ammonia, NH₃

• 2

• 3

• 4

• 5

Tags

NGSS.MS-PS1-1

How many elements are in the compound for propane, C₃H₈

• 2

• 3

• 8

• 11

Tags

NGSS.MS-PS1-1

The chemical formula for glucose is C₆H₁₂O_6. How many hydrogen atoms are in glucose?

• 3

• 6

• 12

• 24

Tags

NGSS.MS-PS1-1

NaCl is the chemical formula for salt. Is NaCl considered a compound or an element?

• element

• compound

• both

• neither

Tags

NGSS.MS-PS1-1

How many total atoms are in the compound 2H₂O?

• 2

• 3

• 4

• 6

Tags

NGSS.MS-PS1-1

The chemical formula for baking soda is NaHCO₃. How many total atoms are in this chemical formula?

• 3

• 4

• 5

• 6

Tags

NGSS.MS-PS1-1

We breathe oxygen. Its chemical formula is O_2. Is this formula an element or a compound?

• element

• compound

• neither

• both

Tags

NGSS.MS-PS1-1

How many atoms of hydrogen are in the chemical formula H₂SO₄

• 2

• 3

• 4

• 7

Tags

NGSS.MS-PS1-1

What is the large number before the chemical formula called? (example: 2H₂0)

• element

• subscript

• coefficient

• superscript

How many atoms of magnesium (Mg) are in the compound Al₂MgO₄

• 7

• 4

• 2

• 1

Tags

NGSS.MS-PS1-1