Răspuns:
miu,Mg(OH)2=58g/mol
niu=m/miu=348/58mol=6molMg(OH)2
1mol.................................................................2mol
Mg(OH)2 + 2HNO3------> Mg(NO3)2 + 2H2O
6mol......................................................................x
x= 12molH2O
Explicație: