2 NH₃(g) + H₂S(g) → (NH₄)₂S(s)
Here's the breakdown:
* 2 NH₃(g): This represents two molecules of ammonia gas (NH₃). The (g) indicates it's in the gaseous state.
* H₂S(g): This represents one molecule of hydrogen sulfide gas (H₂S). The (g) indicates it's in the gaseous state.
* (NH₄)₂S(s): This represents one molecule of solid ammonium sulfide ((NH₄)₂S). The (s) indicates it's in the solid state.
Explanation:
* The reaction involves two ammonia molecules (NH₃) reacting with one hydrogen sulfide molecule (H₂S).
* The hydrogen sulfide molecule provides the sulfide ion (S²⁻).
* The ammonia molecules provide the ammonium ions (NH₄⁺).
* These ions combine to form the solid ammonium sulfide ((NH₄)₂S).
This equation is balanced because there are:
* 2 Nitrogen atoms on both sides of the equation.
* 8 Hydrogen atoms on both sides of the equation.
* 1 Sulfur atom on both sides of the equation.