Review

What is the chemical formula of sodium bicarbonate?

• NaCO₃

• Na₂CO₃

• NaHCO₃

• Na₂HCO₃

How many milliliters are there in 5 Liters?

• 50 L

• 0.005L

• 0.0005 L

• 5000 L

Give the name of a compound with a chemical formula of CaSO4.

• calcium sulfide

• calcium sulfate

• calcium sulfur

• calcium sulfite

Balance this chemical equation:   Al₂(SO₄)₃  + HCl  → AlCl₃ +  H₂SO₄.

• Al₂(SO₄)₃  + 6HCl  → 2AlCl₃ +  3H₂SO₄.

• Al₂(SO₄)₃  + HCl  → 2AlCl₃ +  H₂SO₄.

• Al₂(SO₄)₃  + 2HCl  → 2AlCl₃ +  H₂SO₄.

• Al₂(SO₄)₃  + 6HCl  → 2AlCl₃ +  H₂SO₄.

How many grams are there in 30 kg?

• 0.3 g

• 300 g

• 30000 g

• 0.0003 g

What is the chemical formula of ammonium nitrate?

• (NH₄)₃N

• (NH₄)₃NO3

• NH₄NO₃

• (NH₄)₃NO3

Balance this chemical equation: MgO  +  K₃N  → Mg₃N₂  +  K₂O

• MgO  +  2K₃N  → Mg₃N₂  +  K₂O

• MgO  +  K₃N  → Mg₃N₂  +  K₂O

• 3MgO  +  2K₃N  → Mg₃N₂  +  3K₂O

• 3MgO  +  2K₃N  → Mg₃N₂  +  K₂O