Complete the following :
`Mg overset(("Air"))underset("heat")to underset([A])"colourless solid" overset("HCl")to underset([B])"colourless solution" overset(Na_(2)CO_(3))to underset([C])"white ppt" overset("heat")to underset([D])"colourless gas"overset(Ca(OH)_(2))to underset([E])"white ppt"`