Question

Observations of activities of chemistry class 10

Answer 1

Answer:

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 energ

2Mg(s) + O2(g) ———> 2MgO(s)

Caution:

Magnesium can burn spontaneously like a cracker. Keep it away from the body during the experiment.

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