Combine Mg2+ & CrO42- and Sr2+ & SO42- - Answers Included

[ncmm16]

what is CrO₄^2- in chemistry?

how do you combine the formula for Mg²⁺ and CrO₄^2-
please explain and show work thanks
Well my guess would be that its... MgO₄?ALSO: how do you combine Sr²⁺ and SO₄^2-
it would be SrSO₄ right? or would it be Sr₄SO and does the SO need parentheses around it?
ah please help I am confusing myself

and sorry for messing up the last part. (fixed)

 

[pzona]

CrO$$_{4}$$ $$^{2-}$$ is the chromate ion. For your other question, show an attempt at figuring it out yourself and you'll be more likely to get help. Or if you're really that confused, which part do you not understand about it? I'll help you with the question, but no one here is going to just give you the answer.

And for the last part, you gave magnesium and sulfate ions in the problem, and then when you worked it out you used the carbonate ion. I think you may have typed the wrong thing, so if you clear that up I'll be glad to help

 

[Missionz12]

It would be Sr(SO₄) The ending compound must have a net charge of zero, the Sr ion has a 2+ charge and the ionic compound SO₄ has a 2- charge, meaning you would need only need one of each to have a net charge of zero.

 

[Borek]

It would be Sr(SO₄)

No need for brackets, SrSO₄ will do.

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methods

 

[Missionz12]

Right sorry, the parenthesis would have only been needed if there were more than one of the SO₄ ions.