Investigation 10A - Questions 11 - 20

Gap-fill exercise

Balance the following chemical equations. Fill in all the gaps, then press "Check" to check your answers.

1. Na2O2 + H2O --> NaOH + O2
2. Fe2O3 + C --> Fe + CO
3. Fe + H2O --> H2 + Fe2O3
4. FeCl3 + KOH --> KCl + Fe(OH)3
5. Al + H2SO4 --> Al2(SO4)3 + H2
6. Na2CO3 + Ca(OH)2 --> NaOH + CaCO3
7. CO2 + H2O --> H2CO3
8. P + O2 --> P2O5
9. Na + H2O --> NaOH + H2
10. Zn + H2SO4 --> ZnSO4 + H2