- #1
physicsman2
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Homework Statement
20. Which substance gets reduced in the reaction below?
Na2SO4 + 4 C → Na2S + 4 CO
a.CO
b.Na2SO4
c.C
d.Na2S
e.this is not an oxidation-reduction reaction
Homework Equations
none
The Attempt at a Solution
i know how to find the oxidation numbers, but why is b the answer I don't understand why.
Can anyone explain why? Thanks.