Question

Which compound is not correctly balanced by charge in the following reaction?

Fe(NO3)2 + Al2(CO3)3 + FeCO3 + AINO3

a. Fe(NO3)2
d. AINO,
b. AL(CO3)3
e. Fire Truck
C. Feco3​

Answer 1

C. FeCO₃

Balanced equation: 3Fe(NO₃)₂ + Al₂(CO₃)₃ → 3FeCO₃ + 2AI(NO₃)₃

Expla​nation:

To identify the compound that is not completely balanced we need to look at the number of atoms of each element.

• The given equation is;

Fe(NO₃)₂ + Al₂(CO₃)₃ → FeCO₃ + AINO₃

• On the reactant side; 1 iron atom, 2 nitrogen atom, 15 oxygen atoms, 2 aluminium atoms and 3 carbon atoms.

• On the product side: 1 iron atom, 1 nitrogen atom, 6 oxygen atoms, 1 aluminium atoms and 1 carbon atom.

• The equation is not balanced and the compound that is not correctly balanced is FeCO₃.

• Therefore, the balanced equation should be written as;

3Fe(NO₃)₂ + Al₂(CO₃)₃ → 3FeCO₃ + 2AI(NO₃)₃