Question

Fill in the missing coefficients for the skeleton equation: Cr(s) + Fe(NO₃)₂(aq) → Fe(s) + Cr(NO₃)₃(aq)

a) 2, 2, 2, 3
b) 1, 1, 1, 3
c) 1, 2, 2, 3
d) 2, 1, 1, 3

Answer 1

The missing coefficients for the skeleton equation are: Cr(s) + 3Fe(NO₃)₂(aq) → 3Fe(s) + 2Cr(NO₃)₃(aq).

Step-by-step explanation:

The missing coefficients for the skeleton equation are:

Cr(s) + 3Fe(NO₃)₂(aq) → 3Fe(s) + 2Cr(NO₃)₃(aq)

The balanced equation shows that 1 chromium atom reacts with 3 iron(II) nitrate molecules to produce 3 iron atoms and 2 chromium(III) nitrate molecules.