This is a chemical equation representing a reaction between barium sulfide (BaS) and hydrochloric acid (HCl) to produce barium chloride (BaCl2) and hydrogen sulfide (H2S).
- BaS (barium sulfide) is a chemical compound consisting of barium and sulfur. It is a white crystalline solid that is insoluble in water but slightly soluble in acid.
- HCl (hydrochloric acid) is a strong acid. It is a colorless, pungent solution of hydrogen chloride in water.
- BaCl2 (barium chloride) is a chemical compound consisting of barium and chlorine. It is a white crystalline solid that is soluble in water and acid.
- H2S (hydrogen sulfide) is a colorless gas with a characteristic odor of rotten eggs. It is very poisonous, corrosive, flammable, and explosive.
- Reaction Conditions:
The reaction takes place under standard conditions (pressure of 1 bar and temperature of about 25°C or 298K). The presence of water can also facilitate this reaction.
- Reaction Process:
When barium sulfide and hydrochloric acid react, they produce barium chloride and hydrogen sulfide. The barium ion of barium sulfide (BaS) displaces the hydrogen ion of hydrochloric acid (HCl), forming barium chloride (BaCl2) and releasing hydrogen sulfide gas (H2S).
- Phenomena Occurring:
As the reaction takes place, a noticeable gas (hydrogen sulfide) with a characteristic smell of rotten eggs is released. This serves as an indication that the reaction has occurred. Furthermore, the formation of a white precipitate (barium chloride) can be observed.