It is the formula of Dichromate ion
There is no "formula, just the symbol Cr(VI) or CrVI.
CrO2this is the incorrect formula. For Chromium II oxide the formula is actually CrO without the 2. The reason for this is simple. the II after chromium indicates that it has a charge of +2, and the oxygen, we know is in group 16, has a charge of -2. The formula CrO2 is actually the formula for chromium IV oxide>
Chromium has the chemical symbol Cr and an atomic number of 24 . Particulars can be found here: http://en.wikipedia.org/wiki/ChromiumWell, I have the same question respond please
Chromium(II) nitrate: Cr(NO3)2Chromium(III) nitrate: Cr(NO3)3
Chromium (Cr) is a solid metal: chromite is a mineral with the chemical formula Cr2FeO4.
Chromium (III) has a 3+ charge. Permanganate (MnO4-) Has a 1- charge. Therefore it takes 3 Permanganate anions to equal the charge of a Chromium (III) cation. This should be Cr(MnO4)3
Calcium dichromate
+2
Cr(CN)2
+2
The formula for calcium chromate is CaCrO4.
The formula is CrBr2. This is derived by balancing the electrons from the atoms. Chromium II has a charge of +2 and Bromine has a charge of -1. Therefore in order for this molecule to be electrically balanced, there must be 2 bromine ions to offset the +2 charge of the chromium ion.
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
The answer from my chem class states its Cr(NO3)2
CrCl2
Formula: Cr(SO4)3
The chemical symbol (not formula) of chromium is Cr.