Question

What chemical change would you observe when:

1. Mercurio oxide is heated.
2. Water is added to quicklime.
3. Silver nitrate solution is added to sodium chloride solution.
4. Sodium hydroxide is added to dilute hydrochloric acid.
5. Ammonium hydroxide is added to Zinc sulphate solution.​

Answer 1

Answer:

here is ur answer

Explanation:

a) When it is heated, it decomposes into mercury metal and oxygen gas. A reaction is also considered to be a decomposition reaction even when one or more of the products are still compounds.

b) When Water is added to quick lime, then a lot of heat is released and heavy fizzing occurs because Slaked lime is formed ( Calcium Hydroxide). CaO + H₂O → Ca(OH)₂ + heat energy.

c) When silver nitrate solution is added to sodium chloride solution, then a white precipitate of silver chloride is formed along with a sodium nitrate solution.

d) Hydrochloric acid and sodium hydroxide interact, resulting in salt and a release of heat.

e) White,gelatinous precipitate of zinc hydroxide is formed when ammonium hydroxide is added to zinc sulphate solution.