Question

KOH+Rb2O= KOH+SO2= H2S+Rb2O= H2S+Rb2O =

Answer 1

Первая реакция не пойдёт
Вторая: 2KOH+SO2=K2SO3+H2O
Rb2O+H2S=Rb2S+H2O
Rb2O+2H2S=2RbHS+H2O

Надеюсь ответ для вас оказался полезным

Answer 2

I'm sorry, but your question is incomplete. It appears that you have listed a series of chemical reactions, but there are no reactants specified for each reaction. Please provide more information about the reactants involved and any specific question you have about these reactions.