Question

what happens when magnesium burns in air

Answer 1

Answer:

Mg + O2 will give magnesium oxide

Explanation:

when magnesium burns it reacts with oxygen to form magnesium oxide

Answer 2

In dry air,all alkaline earth metals(II A group) give nitride and oxide.

3Mg+N2 -⟩ Mg3N2

2Mg+O2 -⟩ 2MgO(case of burning in air)

In moist air,except Be all the elements converts into carbonates. e.g.

2Mg+O2 -⟩ 2MgO

MgO+H2O -⟩ Mg(OH)2

(moist)

Mg(OH)2+CO2 -⟩ MgCO3+H2O

(in air)