Here is a tutorial on how to find out your own mobile number when you forget with codes on Aircel, Airtel, Uninor, Relinace, vodafone, Idea, Virgin, Docomo.
A. Burning a piece of paper is technically called combustion. It represents a chemical reaction whereby the carbon compounds in the paper are oxidized into different chemicals like carbon dioxide and water vapor. This is a chemical change.
Chemical Energy: There is potential energy contained inside things which can be released as heat or other forms of energy when combusted with oxygen. The energy in fossil fuels is chemical energy, which releases heat energy when burnt.