Activity 1.1 Ncert Science class 10 Chemical reactions and Equations.
Activity 1.1 asks us to burn Magnesium ribbon in a china dish and see what happens.
Magnesium ribbon burns spontaneously, and white ash deposits on the china dish.
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)
Magnesium can burn spontaneously like a cracker. Keep it away from the body during the experiment.