Question

Give 4 reasons why burning of magnesium ribbon is considered chemical change.

Answer 1

Answer:

Burning of magnesium ribbon in air is an example of chemical change. This is because when we burn magnesium ribbon in presence of oxygen it forms magnesium oxide . From magnesium oxide we cannot get back it's original state. ... It's chemical composition changes and new substance is formed(magnesium oxide).

HOPE THIS HELPS YOU ✌️

Answer 2

Answer:

Burning of magnesium is a chemical change because the following reaction takes place when magnesium is burnt:

Mg+O2-------》MgO

In the above reaction, change in colour is seen and the temperature has to be changed for the above reaction to take place. The magnesium oxide cannot be turned back to magnesium normally, thus this reaction is called as a chemical change.

HOPE THIS BRING A SMILE IN YOUR FACE

Explanation: