Chemical Properties of Carbon and its compounds
Elemental carbon undergoes no reaction at room temperature and limited number of reactions at elevated temperatures. But its compounds undergo large number of reactions even at room temperature.
Carbon combines with oxygen to form its oxides like carbon monoxide (CO) and carbon dioxide (CO2) with evolution of heat. Organic carbon compounds like hydrocarbon also undergo oxidation to form oxides and steam with evolution of heat and flame. This is otherwise called Burning.
2C(s) + O2(g) → 2CO(g)+ heat
C(s) + O2(g) → CO2(g) + heat
CH4(g) + 2O2(g) → CO2(g) + 2H2O(g) + heat
Carbon reacts with steam to form carbon monoxide and hydrogen. This mixture is called water gas.
C(s) + H2O(g) → CO(g) + H2(g)
With sulphur, carbon forms its disulphide at high temperature.
C(s) + S(g) → CS2(g)
At elevated temperatures, carbon reacts with some metals like iron, tungsten, Titanium, etc. to form their carbides.
W(s) + C(g) → WC(s)