Question

what are the products that are formed when ag reacts with h₂s in a single - displacement reaction?
○ agsh and h
○ agsh₂ and h₂
○ ag₂s and h₂
○ agh and sh

Explanation:

Step1: Recall single - displacement reaction rules

In a single - displacement reaction \(A + BC
ightarrow AC + B\). Here, \(Ag\) (a metal) reacts with \(H_2S\) (a compound). Silver (\(Ag\)) has a + 1 oxidation state. Sulfide (\(S^{2 -}\)) has a - 2 oxidation state. To form a neutral compound, two \(Ag\) atoms will combine with one \(S\) atom (\(Ag_2S\)).

Step2: Analyze hydrogen part

In \(H_2S\), when \(Ag\) displaces \(H\), hydrogen atoms combine to form \(H_2\) (since hydrogen is diatomic in its elemental form).

Answer:

\(\text{Ag}_2\text{S and H}_2\) (the third option)