K2S + 2H2O ---------> 2KOH + H2S
2K [+] + S [2-] + 2H2O --------> 2K [+] + 2OH [-] + H2S
S [2-] + 2H2O --------> 2OH [-] + H2S
AgNO3 + HCl -------> AgCl↓ + HNO3
Ag [+] + NO3 [-] + H [+] + Cl [-] ------> AgCl↓ + H [+] + NO3 [-]
Ag [+] + Cl [-] --------> AgCl↓
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K2S + 2H2O ---------> 2KOH + H2S
2K [+] + S [2-] + 2H2O --------> 2K [+] + 2OH [-] + H2S
S [2-] + 2H2O --------> 2OH [-] + H2S
AgNO3 + HCl -------> AgCl↓ + HNO3
Ag [+] + NO3 [-] + H [+] + Cl [-] ------> AgCl↓ + H [+] + NO3 [-]
Ag [+] + Cl [-] --------> AgCl↓