no, I think thermite is.
Lignite is the youngest and softest coal; bituminous is mid-grade coal, and anthracite is the hardest and hottest burning coal. Even brown coal.
I believe the substance you are refering to is coal tar. Coal tar is a byproduct of burning large amount of coal when the smoke condences you are left with a very thick tar like substance. hope this helps.
Coal
chemical. A chemical change is a change where a substance is changed and a new substance is formed. in the case of coal when the solid carbon in the coal combines with the oxygen in the air carbon dioxide (CO2) is formed.
anthracite coal
Lignite is the youngest and softest coal; bituminous is mid-grade coal, and anthracite is the hardest and hottest burning coal. Even brown coal.
I believe the substance you are refering to is coal tar. Coal tar is a byproduct of burning large amount of coal when the smoke condences you are left with a very thick tar like substance. hope this helps.
Petroleum , or coal, or gas. Your question is unclear, can you ask it differently?
Coal
chemical. A chemical change is a change where a substance is changed and a new substance is formed. in the case of coal when the solid carbon in the coal combines with the oxygen in the air carbon dioxide (CO2) is formed.
anthracite coal
Dicyanoacetylene (C4N2), also called carbon subnitride, is the hottest burning gas, burning at 4990 °C
Burning coal is an exothermic reaction as it give heat
Bituminous coal is a soft coal, compared to anthracite coal, a hard coal. Bituminous coal is a long-burning, hot burning source of fuel.
where at Amidon can you see burning coal beds
burning of coal is chemical change
A potenial impact of burning coal is using up the coal. Another impact is pollution