Tolong di jawab yaa no. 7 dan 8

Jawaban dilampirkan ..
7. B
8.
→ SO2
- O = -4/2 = -2
- S = +4

→ S2O3^2-
- +4 -6 = -2
- S = +4/2 = +2
- O = -2

→ S4O6^2-
- +10 -12 = -2
- S = +10/4 = 5/2
- O = -12/6 = -2

→ SO4^2-
- +6 -8 = -2
- S = +6
- O = -8/4 = -2

→ H2S
- H = +2
- S = -2

◎ Biloks S paling tinggi di opsi D. SO4^2-