Activity 1.1 Ncert Science class 10 Chemical reactions and Equations.
Brief Procedure:
Activity 1.1 asks us to burn Magnesium ribbon in a china dish and see what happens.
Observation:
Magnesium ribbon burns spontaneously, and white ash deposits on the china dish.
Explanation:
Magnesium is a highly reactive metal. It reacts spontaneously with oxygen present in the atmosphere to form white ash of Magnesium oxide with the liberation of energy.
2Mg(s) + O2(g) ———> 2MgO(s)
Caution:
Magnesium can burn spontaneously like a cracker. Keep it away from the body during the experiment.
Next: Lead nitrate reaction with potassium iodide.Activity 1.2
Zinc granules reaction with acid.Activity 1.3.
See also:
Solved questions and activities of chapter 1 Chemical reactions and equations.
Magnesium is a kept in air for a long time. It get covered magnesium oxide.
Magnesium is a very reactive metal it reacts with oxygen to form a layer of magnesium oxide on its surface. It further reacts with carbon dioxide in the air and water vapour and forms a protective layer of basic magnesium carbonate.
When we clean the ribbon, we clean it because of the layer of Magnesium oxide on its surface or because the layer of Magnesium Carbonate on its layer?
Concept cleared
I always write questions here
I always write questions here
Nice explaination