chemical formula

Hydrochloric acid

Zinc hydroxide

Ammonium nitrate

What is the formula of Copper (II) oxide?

• CUO

• CuO

• CuO₂

• Cu₂O

Lead Nitrate

• PB(NO_3)₂

• Pb(NO_3)₂

• Pb(NO_3)

Which is the correct formula for:
 three hydrogen (H)
one sulfur (S)
four oxygen (O)

• H₃SO₄
• HSO₄
• H₄S₃O
• H₂O

How many electrons are in the outer shell of group 1 elements?

• 0

• 1

• 2

• 3

The substances at the beginning of a chemical equation are called the ____

• product
• yield
• chemical symbol
• reactants

NH₃ ---> N₂ + H₂
What are the products?

• N₂ + H₂
• N₂
• H₂
• NH₃

How many atoms of sulfur are in each molecule of H₂SO₄?

• 1

• 4

• 2

• 7