What is coal combustion

Explanation:

Coal combustion is the process of burning coal to produce energy: the combustion releases heat which is used to heat water, producing steam which is used to move turbines and produce electricity.

The chemical equation for the combustion of pure coal is:

That is called complete combustion.

Incomplete combustion also happens:

CO₂ is a greenhouse gas, thus it is a pollutants.

Also, mined coal contain a lot of other elements, like sulfur (S), nitrogen (N), organic compounds, and heavy metals, which implies many side reactions. So, the combustion of coal releases a lot of pollutants to the atmosphere, which is why this is considered a dirty process.

in chemistry, adhesion and cohesion are attractive forces that exist between molecules. they hold the molecules together from each other. they are different in that adhesive force exists between molecules of different substance while cohesive force happens between molecules of same substance.

adhesion between water and glass causes water molecules at the edge of water and glass interface to climb up the wall in a narrow glass tube. this is called capillary action. cohesion is what gives glass its shape and causes water to form a droplet.