The missing product : MgCl₂
Given
The reaction between Mg and FeCl₃
Required
The missing product
Solution
This reaction is a single replacement reaction
Occurs when one element replaces another element in the compound. The more active element will replace the less active element. The activity of this element can be seen from the voltaic series
Li-K-Ba-Ca-Na-Mg-Al-Mn- (H2O) -Zn-Cr-Fe-Cd-Co-Ni-Sn-Pb- (H) -Cu-Hg-Ag-Pt-Au
Mg is located to the left of Fe in the voltaic series so that it can replace Fe from its compound
General formula :
A + BC ⇒ AC + B
So the reaction :
3Mg + 2FeCl₃ → 2Fe + 3MgCl₂
