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The oxidation state of calcium is +2.

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What element has an oxidation of 2?

Calcium (Ca) typically has an oxidation state of +2.


What is the oxidation number of cac2o4?

The oxidation number of Ca in CaC2O4 is +2 because Ca, a group 2 element, typically has a +2 oxidation state in compounds. The oxidation number of C in C2O4 is +3 because the overall charge of the oxalate ion is -2, and there are two C atoms, each with an oxidation state of +3 to balance the charge.


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