The principal component is carbon.
chemical
They are substances so they are not forms of energy. They contain chemical energy.
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Acid rain
Coal is generally divided into anthracite (hard coal) and bituminous (soft coal). Many grades based on chemical composition and ultimate us are used to subdivide these two major categories.
Coal hasn't a chemical formula; the major and useful component of coal - carbon - has the chemical symbol C.
coal have chemical energy
when you burn coal, it burns thecoal and the oxygen in the air and forms carbon dioxide. carbon + oxygen -> carbon dioxide
Correct.Although they are based on the same element (carbon) they have vastly different structures and atomic arrangements, resulting in very different physical and chemical properties. Such forms are known chemically as allotropes.
Any burning process release carbon dioxide.
Yes. The coal is a solid which than burningthe coal makes a gas.
Coal hasn't a chemical formula; the major and useful component of coal - carbon - has the chemical symbol C.