Victorians used to use coal as make up like lipstick and eyeshadow and you can eat it if you sterilise it and mix it with something :D
Yes coal is in fact pure
Yes, burning coal is exothermic, in fact, that is why people burn coal. It produces heat.
Not sure if this will answer your question, but I'll give it a shot. It's less about the fact that is is coal and more about the fact that coal gives off heat. When coal was first being used as a heat source, it was cheaper than wood and there was a lot of it. So really the origin of the energy is in the heat that the coal generates when on fire and less about the coal itself.
Coal is not from any "big gap" . It is a solid part of the subterranean strata. In fact a big gap is left when coal is removed.
Coke is a special form of carbon usually produced from coal. The name probably derives from the fact that it involves a kind of 'cooking' of coal.
coal is used to make a fire and is also a mineral
Renewable as we produce more than we use, for example coal is non-renewable because of the fact that we can't produce coal as fast as we use it.
coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal
Carbonite was used as an explosive in coal mines because it was the safest material to use. This is due to the fact that most of the carbon is bound into carbon monoxide.
A fact about the Canadian wildness is the Moose and the interesting trees. And the big lakes the mine for coal too.
This is in reference to the fact that both are predominately combosed of carbon.
steel and coal history, rugby singing festivals