Question

Допишите уравнения реакций. Определите их тип. 1.Zn + HCl = H2 + Fe2O3 = H2 + P = H2 + Ca = KCl = Fe(OH)3 = 1.Mg + HCl = 2. H2 + HgO = 3. H2 + I2 = 4. H2 + Al = 5. Al2S3 = 6. H2SO3 =

Answer 1

1) Zn+2HCl->ZnCl2+H2
2)3H2+Fe2O3->3H2O+2Fe
3)3H2+3P->2PH3
4)H2+Ca->CaH2
5)2KCl->2K+Cl2
6)2Fe(OH)3->Fe2O3+3H2O
1)Mg+2HCl->MgCl2+H2
2)H2+HgO->Hg+H2O
3)H2+I2->2HI
4)3H2+2Al->2AlH3
5)Al2S3->2Al+3S
6)H2SO3->H2O+SO2

Answer 2

1. Zn + 2HCl = ZnCl2 + H2 (Single displacement)
2. 2HCl + Fe2O3 = 3H2O + 2FeCl3 (Double displacement)
3. 2HCl + P = H2 + PCl3 (Single displacement)
4. H2 + Ca = CaH2 (Synthesis)
5. 2KCl = 2K + Cl2 (Decomposition)
6. Fe(OH)3 + 3HCl = FeCl3 + 3H2O (Double displacement)
7. Mg + 2HCl = MgCl2 + H2 (Single displacement)
8. H2 + HgO = H2O + Hg (Reduction)
9. H2 + I2 = 2HI (Synthesis)
10. 2Al + 3H2 = 2AlH3 (Synthesis)
11. Al2S3 + 6H2O = 2Al(OH)3 + 3H2S (Double displacement)
12. H2SO3 = H2O + SO2 (Decomposition)