How can I deduce the balance equation for magnesium sulphide using half equation method(ion-electron method)???

Question

2923 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2017-06-12T16:53:00

Do you refer to #"steel-making..........."??#

Sulfur is removed from pig iron by the following reaction with magnesium..........

#Mg(l) + 1/8S_8(s) rarr MgS(s)#

I am told that the powdery magnesium sulfide floats atop of the liquid steel, and is then removed from the blast furnace.

If I wanted to represent this by means of half equations, I would separate the individual redox equations......

#"Oxidation (i):"# #Mg rarr Mg^(2+) rarr 2e^(-)#

#"Reduction (ii):"# #S +2e^(-) rarr S^(2-)#

#"Overall (i) + (ii):"# #Mg(s) + S(s) rarr MgS(s)#