Chemistry_07_Chemical equations- counting atoms + formula

How many O atoms are found in H₂SO₄?

• 1

• 2

• 3

• 4

What does this diagram show?

• H₂O

• 2 H₂O

• H₄O₂

• O₂H₄

What is the name of the compound, H₂SO₄ ?

• hydrogen sulfate

• dihydrogen sulfur oxygen

• sulfuric acid

• sulfate

How many H atoms are there in this equation: HCl + H₂O ?

• 1

• 2

• 3

• 4

How many H atoms are there in this equation: H₂O + 2HCl ?

• 1

• 2

• 3

• 4

What is the chemical formula of hydrochloric acid?

• hcl

• Hcl

• HCl

• HCL

How many Na atoms are in 2 Na₂CO₃ ?

• 1

• 2

• 3

• 4

How many C atoms are in 2 HCl ?

• 0

• 1

• 2

• 3

How many O atoms are in 2 Ca(OH)₂ ?

• 1

• 2

• 3

• 4

How many C atoms are in 2 Na₂CO₃ ?

• 0

• 1

• 2

• 3