Carbon is reduced, going from an oxidation number of plus 4 to 0, and oxygen goes from negative 2 to 0, meaning that oxygen is oxidized. It can happen!

碳还原，数从 4 0，从负 2 0， 这意味着。 这有可能发生！

When you break this down in to half reactions, first you have elemental zinc with an oxidation number of 0 being oxidized to zinc 2 ion.

当你将其分解半反应时，首先是零价的锌元素成锌离子（Zn²⁺）。

And especially when you start going into oxidation numbers and things like that, electronegativity will tell you a lot.

特别是在你开始涉及数这些东西时，电负性会告诉你很多信息。