Final answer:
The name of the compound Cr(NO3)3 is chromium(III) nitrate, reflecting the +3 oxidation state of the chromium cation and the presence of three nitrate anions.
Step-by-step explanation:
The name of the compound Cr(NO3)3 is chromium(III) nitrate. This name is derived from the cation Cr, which is chromium, and the charge on chromium which in this case is +3. The Roman numeral (III) indicates the oxidation state of chromium. The anion NO3 is nitrate, and since there are three nitrate ions, the formula is Cr(NO3)3, indicating one chromium ion for every three nitrate ions.