It is a chromium III
Chromium 2
CrNO3 ************2nd Opinion*********** To get the correct formula, you need to state the oxidation number of chromium in the compound, using a Roman numeral. It's likely to be chromium(III) nitrate, which is Cr(NO3)3
Chromium (III) chloride
Chromium (II) Fluoride
the chemical formula for chromim(II) fluoride is CrF2
The name of CrCN2 is chromium(II) cyanide.
CrNO3 ************2nd Opinion*********** To get the correct formula, you need to state the oxidation number of chromium in the compound, using a Roman numeral. It's likely to be chromium(III) nitrate, which is Cr(NO3)3
Chromium (III) chloride
Chromium (II) Fluoride
the chemical formula for chromim(II) fluoride is CrF2
Cr2O3 is the chemical formula for chromium (III) oxide
Chromium (II) chloride = CrCl2Chromium (III) chloride = CrCl3 Chromium (IV) chloride = CrCl4
No...theres only Copper I and Copper II cations
Chromium(II) nitrate: Cr(NO3)2Chromium(III) nitrate: Cr(NO3)3
CrO is the formula for chromium(II) oxide. Cr is the elemental symbol for chrome, and O represents oxygen. The molecular weight of CrO is 68.00 grams/per mole using two significant figures. Variants of CrO include II, III and VI.
The name of CrCN2 is chromium(II) cyanide.
That would be chromium(II) sulfate, but really, chromium mostly exists as Cr(III) or Cr(VI), which would change the formula.
there is no element with the symbol R, so perhaps it is meant to read CrCl6 which is Chromium Chloride. Hope this helps! for more info on Chromium Chloride visit http://en.wikipedia.org/wiki/Chromium(III)_chloride