Question

Question 48
Give the formulae of the stable binary compounds that would be formed by the combination of following pairs of elements.
(a) $\text{Mg}\text{and}{\text{N}}_2$
(b) $\text{Li}\text{and}{\text{O}}_2$
(c) $\text{Al}\text{and}{\text{Cl}}_2$
(d) $\text{K}\text{and}{\text{O}}_2$

Answer 1

$\text{(}a)3\text{Mg(s)}+{\text{N}}_2\text{(g)}\to {\text{Mg}}_3{\text{N}}_2\text{(s)}(\text{Magnesium nitride})\text{(b)}4\text{Li(s)}+{\text{O}}_2\text{(g)}\to 2{\text{Li}}_2\text{O(s)}(\text{Lithium oxide})\text{(c)}2\text{Al(s)}+3{\text{Cl}}_2\text{(g)}\to 2{\text{AlCl}}_3\text{(s)}(\text{Aluminium chloride})\text{(d)}4\text{K(s)}+{\text{O}}_2\text{(g)}\to 2{\text{K}}_2\text{O}(\text{Potassium oxide})$