Question

how to calculate the oxidation number of cuso4

Answer 1

Do u want the oxidation number of a single atom?

Answer 2

yes please

Answer 3

aight so oxygen will always have an oxidation number of -2 except for peroxides (but this isn't a peroxide). you must memorize this

So this means that 4 oxygens will have a total oxidation number of -8.

Keep in mind sulfate has a minus two charge overall so the oxidation number of the sulfur must be +6 to compensate.

To determine the Cu, you know that the sulfate has a -2 overall and the overall compound has 0 overall. This means Cu must have and oxidation state of +2.

Answer 4

thanks