In the reaction H2S + NH3 NH4+ + HS–, the two Brönsted-Lowry bases are

A) NH3 and HS-

B) NH3 and NH4+

C) H2S and NH3

D) H2S and HS-

Option A is correct.

The two Brönsted Lowry bases are NH₃ and HS⁻.

Explanation:

In any neutralization reaction or any reaction that seems like a neutralization reaction, the Bronsted Lowry Acid is the specie that donates a proton in reaction, the base is the specie that accepts the donated proton in the reaction.

The acid, after donating the proton becomes the conjugate base, and the base after receiving the proton becomes a specie known as the conjugate acid.

In this reaction, H₂S (acid) loses a proton to NH₃ (base) to form a HS⁻ (conjugate base) and NH₄⁺ (conjugate acid).

In a backward reaction, the conjugate acid and conjugate base form the acid and base pair respectively as required.

Hence, the two two Brönsted-Lowry bases are NH₃ and HS⁻.

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< > according to newton's third law of motion, forces always act in equal but opposite pairs. another way of saying this is for every action, there is an equal but opposite reaction.< >