A piece of metal was placed in a beaker, heated, and reacted with oxygen, thereby becoming a metal oxide. During this process, depending on reaction conditions, the metal’s oxidation state could become either M2+ or M3+. Consider the mass of the metal oxide.
a) The mass of the metal oxide is the same as the mass of the initial metal
b) The mass of the metal oxide is greatest if the metal becomes M 3+
c) The mass of the metal oxide is greatest if the metal becomes M 2+
d) The mass of the metal oxide is greatest if O 2(g) is the limiting reactant.
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