What compound forms between #Fe^(3+)# and #SO_4^(2-)#? What is its name?

Answer 1

Iron(III) sulfate

The first thing to note here is that the compound that contains the #"Fe"^(3+)# cations and the #"SO"_4^(2-)# anions must be neutral.

This implies that the total negative charge from the anions must equal the total positive charge from the cations.

In this case, you will need two #"Fe"^(3+)# cations for every three #"SO"_4^(2-)# anions to form a neutral compound.
#color(red)(2)"Fe"^color(blue)(3+) + color(blue)(3)"SO"_ 4^color(red)(2-) -> "Fe"_ color(red)(2)("SO"_ 4)_ color(blue)(3)#

You must now use iron's status as a transition metal, which suggests that it can form multiple cations, to give this compound a name.

In order to show that the iron cation carries a #3+# charge, you must use Roman numerals. In this case, you will have
#"Fe"^(3+) -># the iron(III) cation
The (III) Roman numeral shows that the cation carries a #3+# charge. The anion is called sulfate, which means that the resulting ionic compound will be
#"Fe"_ 2("SO"_ 4)_ 3 -># iron(III) sulfate
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Answer 2

Iron(III) sulfate is the name given to the compound Fe2(SO4)3, which is created when Fe^(3+) and SO_4^(2-) combine.

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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.

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.

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.

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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