10th Chemistry: Ch-01 Chemical Reactions and Equations

1. Solution of barium Chloride and sodium Sulphate in water react to give insoluble barium Sulphate and the solution of sodium Chloride.
2. Sodium hydroxide solution (in water) reacts with hydrochloric acid solution (in water) to produce sodium Chloride solution and water.

⚠ Handle the acid with care.

1. Take a few zinc granules (small pieces) in a conical flask or a test tube.
2. Add dilute hydrochloric acid or sulphuric acid to this.
3. Do you observe anything happening around the zinc granules?
4. Touch the conical flask or test tube. Is there any change in its temperature?

1. Potassium bromide (aq) + Barium iodide (aq) ➡️ potassium iodide (aq) + Barium bromide (s)
2. zinc carbonate (s) ➡️ zinc oxide(s) + carbon dioxide (g)
3. hydrogen (g) + chlorine (g) ➡️ Hydrogen Chloride (g)
4. magnesium (s) + hydrochloric acid(aq) ➡️ magnesium chloride (aq) + hydrogen (g)