Investigation 10B - Questions 11 - 20

Gap-fill exercise

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

1. Mg(NO3)2 + CaI2 --> Ca(NO3)2 + MgI2
2. Al2(SO4)3 + NH4Br --> AlBr3 + (NH4)2SO4
3. KF + BaBr2 --> BaF2 + KBr
4. Cu(NO3)2 + NH4OH --> Cu(OH)2 + NH4NO3
5. NaNO3 --> NaNO2 + O2
6. Pb(OH)2 --> PbO + H2O
7. NH3 + H2SO4 --> (NH4)2SO4
8. HCl + NH3 --> NH4Cl
9. CuSO4 + Fe --> FeSO4 + Cu
10. Al + HCl --> AlCl3 + H2