What is the metal oxidation state in #Fe(SO_4)_2#?

Answer 1

That's #Fe^(4+)#! It is probably a typo.

The sulfate ion is #SO_4^(2-)#. There is a #"ferrous sulfate, "FeSO_4", and a ferric sulfate, " Fe_2(SO_4)_3#. #Fe(IV+)# salts would be rare.

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Answer 2

Mateo Aguilar

The metal oxidation state in Fe(SO₄)₂ is +2.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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