Question

1/ Al + O2 → Al2O3

2/ K + O2 → K2O

3/ Al(OH)3 t0 → Al2O3 + H2O

4/ Al2O3 + HCl → AlCl3 + H20

5/ Al + HCl → AlCl3 + H2↑

6/ Fe0 + HCl → FeCl2 + H20

7/ Fe203 + H2S04 → Fe2(S04)3 + H20

8/ Na0H + H2S04 → Na2S04 + H20

9/ Ca(0H)2 + FeCl3 → CaCl2 + Fe(0H)3 ↓

10/ BaCl2 + H2S04 → BaS04↓ + HCl

11/ Fe(0H)3 t0→ Fe203 + H20

12/ Fe(0H)3 + HCl → FeCl3 + H20

13/ CaCl2 + AgN03 → Ca(N03)2 + AgCl ↓

14/ P + 02 t0→ P205

15/ N205 + H20 → HN03

16/ Zn + HCl → ZnCl2 + H2↑

17/ Al + CuCl2 → AlCl3 + Cu

18/ C02 + Ca(0H)2 → CaC03↓ + H20

19/ S02 + Ba(0H)2 → BaS03↓ + H20

20/ KMn04 t0 → K2Mn04 + Mn02 + 02↑

Answer 1

1/ 2Al + 3O2 → 2Al2O3

2/ 4K + O2 → 2K2O

3/ 2Al(OH)3 t0 → Al2O3 + 3H2O

4/ Al2O3 + 6HCl → 2AlCl3 + 3H20

5/ 2Al + 6HCl → 2AlCl3 + 3H2↑

6/ Fe0 + 2HCl → FeCl2 + H20

7/ Fe203 + 3H2S04 → Fe2(S04)3 + 3H20

8/ 2Na0H + H2S04 → Na2S04 + 2H20

9/ 3Ca(0H)2 + 2FeCl3 → 3CaCl2 + 2Fe(0H)3 ↓

10/ BaCl2 + H2S04 → BaS04↓ + 2HCl

11/ 2Fe(0H)3 t0→ Fe203 + 3H20

12/ Fe(0H)3 + 3HCl → FeCl3 + 3H20

13/ CaCl2 + 2AgN03 → Ca(N03)2 +2 AgCl ↓

14/4P +502 t0→2P205

15/ N2O5 + H2O →2HNO3

16/ Zn +2HCl → ZnCl2 + H2↑

17/2Al +3CuCl2 →2AlCl3 +3Cu

18/ C02 + Ca(0H)2 → CaC03↓ + H20

19/ S02 + Ba(0H)2 → BaS03↓ + H20

20/2KMn04 t0 → K2Mn04 + Mn02 + 02↑

Answer 2

1/ 4Al + 3O2 → 2Al2O3

2/ 4K + O2 → 2K2O

3/ 2Al(OH)3 t0 → Al2O3 + 3H2O

4/ Al2O3 + 6HCl → 2AlCl3 + 3H20

5/ 2Al + 6HCl → 2AlCl3 + 3H2↑

6/ Fe0 + 2HCl → FeCl2 + H20

7/ Fe203 + 3H2S04 → Fe2(S04)3 + 3H20

8/ 2Na0H + H2S04 → Na2S04 + 2H20

9/ 3Ca(0H)2 + 2FeCl3 → 3CaCl2 + 2Fe(0H)3 ↓

10/ BaCl2 + H2S04 → BaS04↓ + 2HCl

11/ 2Fe(0H)3 t0→ Fe203 + 3H20

12/ Fe(0H)3 + 3HCl → FeCl3 + 3H20

13/ CaCl2 + 2AgN03 → Ca(N03)2 + 2AgCl ↓

14/ 4P + 502 t0→ 2P205

15/ N205 + H20 → 2HN03

16/ Zn + 2HCl → ZnCl2 + H2↑

17/ 2Al + 3CuCl2 → 2AlCl3 + 3Cu

18/ C02 + Ca(0H)2 → CaC03↓ + H20

19/ S02 + Ba(0H)2 → BaS03↓ + H20

20/ 2KMn04 t0 → K2Mn04 + Mn02 + 02↑