Write balanced chemical equation for the following processes:
(a) heating calcium in oxygen
(b) heating calcium carbonate
(c) evaporating a solution of calcium hydrogen carbonate
(d) heating calcium oxide with carbon

Explanation

`underset(Calcium)(2Ca)+O_(2)overset("triangle")tounderset(Quick lime (or) calcium oxide)(2CaO)`
`underset("Calcium carbonate")(CaCO_(3(s)))overset("triangle")tounderset("Calcium oxide")(CaO_(S))+CO_(2(g))uarr`
`underset("Calcium hydrogen carbonate")(Ca(HCO)_(3))_(2)overset(/_\)toCaCo_(3)+CO_(2)uarr+H_(2)O`
`underset("Calcium oxide")(2CaO)+underset(Coke)(5C)overset(/_\)tounderset("Calcium oxide")(2CaC_(2))+CO_(2)uarr`