6K.1 Homework

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6K.1 Homework

Postby BeylemZ-1B » Tue Feb 18, 2020 12:21 pm

I am confused on 6K.1 part a. I thought from previous high school chemistry that the species being reduced or oxidized had to be metal (like Fe or Cu) and that is what is typically seen in all the examples from class. I can easily see that Cr is being reduced, but what is being oxidized because I don't see another metal species.

Brian Tangsombatvisit 1C
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Re: 6K.1 Homework

Postby Brian Tangsombatvisit 1C » Tue Feb 18, 2020 12:25 pm

for redox reactions, it's not always going to be metals that are oxidized and reduced. In this example, the Cr is being reduced, but the C, a nonmetal, is actually being oxidized. If you calculate the charge of C in C2H5OH you will see that it is -2 in this molecule, but in the products (C2H4O) it is oxidized to -1.

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