Question

List two observations when magnesium ribbon is burnt over a Bunsen burner.

Answer 1

Explanation:

Hold the tip of the ribbon next to the flame of the burner. The ribbon burns with a bright white light. Intense heat is also produced in this reaction. Here, when magnesium burns, it reacts with the oxygen found in air to form a powdery ash called magnesium oxide

Answer 2

Explanation:

when magnesium ribbon burns it firms to white ash called magnesium oxide

the reaction

magnesium+oxygen gives magnesium oxide