Respuesta :
MgO-magnesium oxide
M₁₂=40 g/mole magnesium oxide
M₁=24 g/mole magnesium
M₂=16 g/mole oxygen
↓
in 40 g MgO...........24 g Mg......16 G
in 100 g MgO...........x g Mg
↓
x=100·24/40
x=60 % Mg from MgO
M₁₂=40 g/mole magnesium oxide
M₁=24 g/mole magnesium
M₂=16 g/mole oxygen
↓
in 40 g MgO...........24 g Mg......16 G
in 100 g MgO...........x g Mg
↓
x=100·24/40
x=60 % Mg from MgO