Study the flow chart and give balanced equations with conditions for the conversions A, B, C, D and E.
A is H2SO4
NaCl + H2SO4 → HCl + NaHSO4
B is ZnS
2 HCl + ZnS → ZnCl2 + H2S
C is AgNO3
HCl + AgNO3 → AgCl + HNO3
D is MnO2
4 HCl + MnO2 → MnCl2 + 2 H2O + Cl2
E is NaOH
HCl + NaOH → NaCl + H2O