Each box in Figure 11.11 represents the contents of a
flask. One flask contains hydrogen sulfide, and the other
contains oxygen. When the contents of the flasks are
mixed, a reaction occurs and water vapor and sulfur are
produced. In the figure, the red circles represent oxygen,
the yellow circles represent sulfur, and blue circles represent hydrogen.
a. Write the balanced chemical equation for the reaction.
b. Using the same color code, sketch a representation of
the flask after the reaction occurs.