When calcium, for instance, reacts with water, it’s not as vigorous as
the reaction
of group 1 metals but the products are the same.
–Ca (s) + H2O
(l) ® Ca(OH)2 (aq) + H2 (g)
–The resulting
solution is referred to as limewater, which when reacted with carbon dioxide
produces a white precipitate (of calcium carbonate).
Magnesium does not even react appreciably with
water.
It reacts with steam to produce magnesium
oxide and hydrogen gas.
–Magnesium + steam ¾® Magnesium oxide + hydrogen
–Mg (s) + H2O (g) ¾® MgO (s) + H2 (g)