What is the correct formula for magnesium dichromate?
Answer:
Mg {+2} and Cr[2]O[7] {-2}
The charges equal out to neutral,
so
MgCr[2]O[7]
[] = subscript
{superscript}
A list of common ions should help you
http://www.google.com/search?hl=en&ie=is...
MgCr.sub.2O.sub.7.6H.sub.2O
The charge on Mg ion is 2+ and that on dichromate ion is 2-.
So, the correct formula should be Mg Cr2 O7.
hm. i think it is ...
Cr 3รท, Mg z+ and O-
...
MgCr2O7
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