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A compound whose general formula is M(OH) reacts as shown by the equation below.
#M(OH)_3(s) + OH^(-) (aq) to M(OH)_4(aq)#
#M(OH)_3(s) + 3H^(+) (aq) to M^(3+) (aq) +3H_2O(l)#
(a) What name is given to compounds which behave like M(OH)3 in the two reactions.
(b) Name two elements whose hydroxides behave like that of M.