Balancing Chemical Equations

Exercises

Balance the following equations

1. H₂O₂(l) ---> H₂O(l) + O₂(g)

2. Mg(s) + O₂(g) ---> MgO(s)

3. BaCl₂(aq) + H₂SO₄(aq) ---> BaSO₄(s) + HCl(aq)

4. (NH₄)₂Cr₂O₇(s) ---> N₂(g) + H₂O(g) + Cr₂O₃(s)

5. Mg₃N₂(s) + H₂O(l) ---> NH₃(g) + Mg(OH)₂(s)

6. Write and balance the equation showing the reaction between iron(III) oxide and carbon monoxide to form iron

metal and carbon dioxide.

7. Write and balance the equation showing the reaction between nitrogen monoxide gas and hydrogen gas to

form nitrogen gas and water vapor.

8. Write and balance the equation showing the reaction between calcium metal and water to form aqueous

calcium hydroxide and hydrogen gas.

9. Write and balance the equation showing the reaction between iron (III) oxide and carbon monoxide to form

iron (II) oxide and carbon dioxide.

10. Write and balance the equation showing the reaction between copper metal and aqueous sulfuric acid

to form aqueous copper (II) sulfate, sulfur dioxide gas and water vapor.

Click here for answers