Counting & Balancing in Chem

How many atoms of H in the reactants?

HCl + NaOH --> NaCl + H₂O

How many atoms of H in the products?

HCl + NaOH --> NaCl + H₂O

How many atoms of O in the reactants?

H₃PO₄ + KOH --> K₃PO₄ + H₂O

__ H₂ + __ Cl₂ → __ HCl

• 1, 1, 2

• 2, 1, 2

• 1, 2, 2

• 1, 1, 1

How many O's are in Al₂(SO₄)₃

• 4
• 12
• 7
• 24

Number of H in 3(NH₄)₂CrO₄

• 4
• 2
• 8
• 24