How many sulfur atoms do you need for this reaction to produce 1 molecule of CS2 and 2 molecules of H2S

A. 1
B. 2
C. 3
D. 4

1 answer

The reaction in question is:

CS2 + 3 H2S -> 4 H2O + CH4.

In this reaction, there is one molecule of CS2 produced and two molecules of H2S produced.

Since there is 1 molecule of CS2, we need 1 sulfur atom.

Since there are 2 molecules of H2S, we need 2 sulfur atoms.

Therefore, the total number of sulfur atoms needed for this reaction is 1 + 2 = 3.

The correct answer is C. 3.