Question

why is burning of cole consedure as chemical change​

Answer 1

Answer:

Explanation:

Burning coal is a chemical change called combustion. A combustion is the chemical reaction (redox reaction) of coal with oxygen O2. It is exothermic, which means it releases energy : hence the heat.

Burning coal is in fact not one type of combustion, but several types of combustion in competition producing CO2 and water, and other compounds such as small hydrocarbons and carbon monoxide.

Answer 2

Explanation:

new substances such as carbon dioxide and water form when we are burning coal. Due to formation of new substances, burning coal is classified as a chemical change. 2. the heat spreading out comes just from the molecules structure change.