Question

H2S与H2SO4反应方程式

要配平的且是两种反应方程式

Answer 1

H2S + 3H2SO4(浓) ==加热== 4SO2(气体) + 4H2O
不加热的话：H2S + H2SO4(浓) ==== S(沉淀) + SO2(气体) + 2H2O

3H2S+H2SO4=4S+4H2O

如果H2SO4过量，那么2H2SO4+S=3SO2+2H2O，总反应就是3H2S+9H2SO4=12SO2+12H2O
也就是说，H2S过量则生成S，3H2S+H2SO4=4S+4H2O
H2SO4过量则生成SO2，3H2S+9H2SO4=12SO2+12H2O
PS这里都是浓硫酸

希望采纳

Answer 2

如果H2SO4过量，那么生成SO2
2H2SO4+S=3SO2+2H2O
H2S过量则生成S，3H2S+H2SO4=4S+4H2O

Answer 3

H2S+H2SO4(浓)--->S+SO2+2H2O

Answer 4

H2S+H2SO4(浓)--->S+SO2+2H2O

Answer 5

H2S+H2SO4(浓)==S+SO2+2H2O