Question

Viết 2 PTHH dạng phân tử cho mỗi PTHH dạng ion rút gọn sau

  S2- + 2H+ → H2S

 

Answer 1

\(Na_2S+2HCl\rightarrow H_2S+2NaCl\)

\(K_2S+2HCl\rightarrow H_2S+2KCl\)

Answer 2

 

 K2S + 2HCl → 2KCl + H2S.

Na2S + 2HCl → 2NaCl + H2S.

Answer 3

\(K_2S+2HCl\rightarrow KCl+H_2S\\ Na_2S+H_2SO_4\rightarrow Na_2SO_4+H_2S\)