Mg(oh)2-mgo-mg(no3)2-mgOhno3

Mg(OH)₂ + t = MgO + H₂O MgO + 2HNO₃ = Mg(NO₃)₂ + H₂O Mg(NO₃)₂  + 2H-OH = 2Mg(OH)NO ₃ + Mg(OH)₂