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# Lewis Structures, Geometry, Resonance: Selenite Ion

CHEM-QS1R89

Copper (II) selenite dihydrate has the formula $CuSe{ O }_{ 3 }\cdot 2{ H }_{ 2 }O$.

Using this as a starting point, which of the following answers are true?

Select ALL that apply.

A

The charge of selenite is -2.

B

A Lewis structure of selenite requires 22 electrons.

C

The electron pair geometry of selenite is tetrahedral.

D

The molecular geometry of selenite is trigonal planar

E

In selenite, two of the Se-O bonds are longer than the other one.

F

The formal charge of the Se atom is 0 and the oxidation state of Se is +4.