Common Chemical Formulas

The chemical formula for water

• HCl

• NaCl

• O₂

• H₂O

Tags

NGSS.MS-PS1-1

The chemical formula for oxygen gas

• HCl

• NaCl

• O₂

• H₂O

The chemical formula for hydrochloric acid

• HCl

• NaCl

• O₂

• H₂O

The number of subscripts in a chemical formula tell us ______.

• the number of atoms of a specific element in the chemical formula

• the number of compounds in the chemical formula

• nothing

• the number of electrons of a specific element in the chemical formula

How many hydrogen atoms are in one water molecule? (water = H₂O)

• 0

• 1

• 2

• 3

Tags

NGSS.MS-PS1-1

How many carbon atoms are in one molecule of carbon dioxide? (carbon dioxide = CO₂₎

• 0

• 1

• 2

• 3

Tags

NGSS.MS-PS1-1

How many atoms IN TOTAL make up one molecule of glucose? (glucose = C₆H₁₂O₆₎

• 6

• 12

• 18

• 24

Tags

NGSS.MS-PS1-1

Which number is the coefficient? (2NH₃)

• There is no coefficient

• 2

• 3

• NH

What is the chemical formula for ammonia?

• NaCl

• CO₂

• NH₃

• C₆H₁₂O₆

Tags

NGSS.MS-PS1-1

What is the chemical formula for table salt?

• NaCl

• CO₂

• NH₃

• C₆H₁₂O₆

Tags

NGSS.MS-PS1-1