Question

5 multiple choice 1 point which is the correct formula for the compound chromium (ii) nitrate? crno2 (cr)2no3 cr(no3)2 cr2no3

Explanation:

Step1: Determine chromium ion charge

Chromium (II) has a +2 charge, written as $Cr^{2+}$.

Step2: Determine nitrate ion

Nitrate ion is $NO_3^-$.

Step3: Balance charges

To balance the +2 charge of chromium, we need 2 nitrate ions. So the formula is $Cr(NO_3)_2$.

Answer:

C. $Cr(NO_3)_2$