Question

Magnesium ribbon when burnt in the air forms a new compound. What is the chemical composition of the compound formed and the changes involved in the process?

Answer 1

Magnesium ribbon is burnt in the air to form the compound of magnesium oxide. This can be represented as:

$\mathrm{Magnesium}+\mathrm{Oxygen}🡪\mathrm{Magnesium}\mathrm{oxide}$

This is an example of a chemical change since a new substance is formed and the chemical composition of the compound is MgO.