Question

What signs are there that the chemical change has taken place when a piece of magnesium ribbon is burnt?

Answer 1

Answer:

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:

it is the sign in which the chemical changes taken place with a piece of magnesium ribbon is burnt