Question

Complete the reaction.
2HCl(aq) + K2S(aq) →

Answer 1

H2S(g) 2KCl(aq)

Step-by-step explanation:

The answer is actually H2S(g) 2KCl(aq) according to Knewton.

Answer 2

Answer: The balanced chemical equation is written below.

Step-by-step explanation:

Double displacement reaction is defined as the reaction in which exchange of ions takes place.

`AB+CD\rightarrow AD+CB`

The chemical equation for the reaction of hydrochloric acid and potassium sulfide follows:

`2HCl(aq.)+K_2S(aq.)\rightarrow 2KCl(aq.)+H_2S(g)`

By Stoichiometry of the reaction:

2 moles of hydrochloric acid reacts with 1 mole of potassium sulfide to produce 2 moles of potassium chloride and 1 mole of hydrogen sulfide gas

Hence, the balanced chemical equation is written above.