State one observation in each case: (1) Ammonium chloride is heated (2) Sodium carbonate is added to dilute hydrochloric acid (3) sodium hydroxide is aded to hydrochloric acid (4) sugar is heated (5) Pottasium iodide is added to lead nitrate
Answers
Answer:
Explanation:
1. Ammonia gas is easily compressed and forms a clear, colorless liquid under pressure. Contents of ammonia may explode when exposed to high heat.
2. Sodium chloride, carbon dioxide and water are formed. A brisk effervescence is seen in the release of carbon dioxide.
3. Hydrochloric acid reacts with sodium hydroxide to form sodium chloride (the salt) and water. Sodium chloride is made up of Na+ cations from the base (NaOH) and Cl- anions from the acid (HCl). HCl+NaOH→H2O+NaCl.
4. The physical state changes from solid to liquid. On further heating, sucrose breaks into glucose and fructose. Upon further heating at high temperature causes these sugars to lose water and react with each other producing many different types of compounds.
5. Potassium iodide is added to a solution of lead nitrate, Potassium nitrate is formed along with lead iodide.