Calculate the number of moles of chlorine gas needed to form 14 moles of iron (iii) chloride

Explanation:

(a) Balanced equation

You haven't given the complete reaction, but we can use a partial equation so long as Cl is balanced.

3Cl₂ + … ⟶ 2FeCl₃ + …

(b). Calculation

You want to convert moles of FeCl₃  to moles of Cl₂

The molar ratio is 3 mol Cl₂:2 mol FeCl₃

"hydrogen bonding is the attraction of h atoms in the water molecule (slight + charge) to o atoms in a neighboring water molecule (slight - charge); it is a weak interatomic force. but it is still strong enough to the water molecules "stick" together."