ZnS(aq) + 2HCl(aq) --> ZnCl2(aq) + 2H2S(g)
what happens in this reaction means what changes& colour happens????
In the reaction between ZnS(aq) and HCl(aq), the following changes occur:
1. ZnS(aq) reacts with HCl(aq) to form ZnCl2(aq) and H2S(g).
2. ZnS(aq) is a colorless aqueous solution of zinc sulfide.
3. HCl(aq) is a colorless aqueous solution of hydrochloric acid.
4. When ZnS(aq) and HCl(aq) react, a chemical reaction takes place and ZnCl2(aq) is formed. Zinc chloride (ZnCl2) is also a colorless aqueous solution.
5. Additionally, 2 moles of H2S(g) or hydrogen sulfide gas is produced as a product. Hydrogen sulfide is a colorless gas with a characteristic smell of rotten eggs.
In summary, the color change in this reaction is not significant, as both the reactants and the products are colorless solutions.
In this reaction, zinc sulfide (ZnS) reacts with hydrochloric acid (HCl) to produce zinc chloride (ZnCl2) and hydrogen sulfide gas (H2S). Let's break down the reaction and understand the changes that occur:
1. Zinc sulfide (ZnS) is a white solid, and hydrochloric acid (HCl) is a clear, colorless liquid.
2. When you mix these two substances together, a chemical reaction takes place.
3. The zinc sulfide (ZnS) reacts with hydrochloric acid (HCl) to form zinc chloride (ZnCl2), which is a white solid, and hydrogen sulfide gas (H2S), which is a colorless gas.
4. The zinc chloride (ZnCl2) remains in solution as an aqueous (aq) solution, and the hydrogen sulfide gas (H2S) is released into the air.
So, to summarize the changes that occur in this reaction:
- The white solid zinc sulfide (ZnS) reacts with the clear, colorless liquid hydrochloric acid (HCl).
- This reaction produces a white solid called zinc chloride (ZnCl2) and a colorless gas called hydrogen sulfide (H2S).
It's important to note that the color changes mentioned here are descriptive and may not be visible to the naked eye. To observe the color changes, you may need to use additional tests or equipment, such as indicators, spectroscopy, or gas detection systems.