Investigation 10A - Questions 1 - 10

Gap-fill exercise

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

1. Fe + S --> FeS
2. Zn + CuSO4 --> ZnSO4 + Cu
3. AgNO3 + NaBr --> NaNO3 + AgBr
4. KClO3 --> KCl + O2
5. H2O --> H2 + O2
6. HgO --> Hg + O2
7. KI + Pb(NO3)2 --> PbI2 + KNO3
8. Al + O2 --> Al2O3
9. MgCl2 + NH4NO3 --> Mg(NO3)2 + NH4Cl
10. FeCl3 + NH4OH --> Fe(OH)3 + NH4Cl