Question

Quais são as fórmulas dos hidróxidos formadas pelos respectivos cátions Fe2+, Pb2+, Na+ e Mn4+
a) Fe2OH, Pb2OH, NaOH, Mn4OH
b) Fe(OH)2, Pb(OH)2, NaOH, Mn(OH)4
c) Fe(OH)2, PB(OH)2, Na(OH)2, Mn(OH)4
d) FeOH, PbOH, NaOH, MnOH
e) Fe(OH)2, Pb(OH)2, NaOH, Mn(OH)4

ME AJUDEM!!

Answer 1

Estão corretas as letras B e E.