Selesaikan masing-masing reaksi ini dengan cara 1/2 reaksi dan cara biloks. Reaksi 1 : Mg (s) + H₂O (g) → MgO (s) H₂ (g) Reaksi 2 : Fe2O3 (s) + 3 CO (g) → 2 Fe (s) + 3 CO2 (g) Reaksi 3 : Zn (s) + CuSO4 (aq) → ZnSO4 (aq) + Cu (s) Reaksi 4 : 2 Mg(s) + SO2 (g) → S (s) + 2 MgO (s) Reaksi 5 : PbS (s) + 4 H2O2 (aq) → PbSO4 (s) + 4 H2O (l) Reaksi 6 : Cl₂ (g) + H2S (g) → 2 HCI (g)+S (s)
Reaksi 1: Mg (s) + H2O (g) → MgO (s) + H2 (g)
Cara 1/2 Reaksi:
Mg (s) + 2 H2O (g) → MgO (s) + 2 H2 (g)
Cara Biloks:
Mg (s) + H2O (g) → MgO (s) + H2 (g)
Mg: 0 → +2
H: 0 → +1
O: 0 → -2
Reaksi 2: Fe2O3 (s) + 3 CO (g) → 2 Fe (s) + 3 CO2 (g)
Cara 1/2 Reaksi:
2 Fe2O3 (s) + 6 CO (g) → 4 Fe (s) + 6 CO2 (g)
Cara Biloks:
Fe2O3 (s) + 3 CO (g) → 2 Fe (s) + 3 CO2 (g)
Fe: +3 → 0
C: 0 → +4
O: -2 → 0
Reaksi 3: Zn (s) + CuSO4 (aq) → ZnSO4 (aq) + Cu (s)
Cara 1/2 Reaksi:
Zn (s) + CuSO4 (aq) → ZnSO4 (aq) + Cu (s)
Cara Biloks:
Zn (s) + CuSO4 (aq) → ZnSO4 (aq) + Cu (s)
Zn: 0 → +2
Cu: +2 → 0
S: +6 → +6
O: -2 → -2
Reaksi 4: 2 Mg(s) + SO2 (g) → S (s) + 2 MgO (s)
Cara 1/2 Reaksi:
4 Mg (s) + 2 SO2 (g) → 2 S (s) + 4 MgO (s)
Cara Biloks:
2 Mg (s) + SO2 (g) → S (s) + 2 MgO (s)
Mg: 0 → +2
S: +4 → 0
O: 0 → -2
Reaksi 5: PbS (s) + 4 H2O2 (aq) → PbSO4 (s) + 4 H2O (l)
Cara 1/2 Reaksi:
2 PbS (s) + 8 H2O2 (aq) → 2 PbSO4 (s) + 8 H2O (l)
Cara Biloks:
PbS (s) + 4 H2O2 (aq) → PbSO4 (s) + 4 H2O (l)
Pb: +2 → +4
S: -2 → +6
O: -1 → -2
Reaksi 6: Cl2 (g) + H2S (g) → 2 HCl (g) + S (s)
Cara 1/2 Reaksi:
Cl2 (g) + H2S (g) → 2 HCl (g) + S (s)
Cara Biloks:
Cl2 (g) + H2S (g) → 2 HCl (g) + S (s)
Cl: 0 → -1
H: 0 → +1
S: 0 → 0