Question

Balance the reactions/equations :
A. Balance the following reactions by
oxidation number method
a. Cr,0,2(aq) + SO,2® (aq) → Cr® (aq)
+ SO 2º (aq) (acidic)
b. Mno,®(aq) + Br®(aq) - MnO, (s)
+13 Cro,® (aq) (basic)
c. H,SO, (aq) + C () CO, (g) +
SO,(9) + H2O (1) (acidic
d. Bi (OH), (9) + Sn(OH),® (aq) - Bi(3)
+ Sn (OH) 2 (aq) (basic)​

Answer 1

Explanation:

Balance the following reactions by

oxidation number method

a. Cr,0,2(aq) + SO,2® (aq) → Cr® (aq)

+ SO 2º (aq) (acidic)

b. Mno,®(aq) + Br®(aq) - MnO, (s)

+13 Cro,® (aq) (basic)

c. H,SO, (aq) + C () CO, (g) +

SO,(9) + H2O (1) (acidic

d. Bi (OH), (9) + Sn(OH),® (aq) - Bi(3)

d. Bi (OH), (9) + Sn(OH),® (aq) - Bi(3)+ Sn (OH) 2 (aq) (basic)✓✓✓

Answer 2

Explanation:

Balance the reactions/equations :

A. Balance the following reactions by

oxidation number method

a. Cr,0,2(aq) + SO,2® (aq) → Cr® (aq)

+ SO 2º (aq) (acidic)

b. Mno,®(aq) + Br®(aq) - MnO, (s)

+13 Cro,® (aq) (basic)

c. H,SO, (aq) + C () CO, (g) +

SO,(9) + H2O (1) (acidic

d. Bi (OH), (9) + Sn(OH),® (aq) - Bi(3)

+ Sn (OH) 2 (aq) (basic)✔️✔️