Răspunsuri

2014-06-17T16:10:03+03:00
Mg + H2SO4 ---> MgSO4 + H2
120 g MgSO4........98 g H2SO4.....1 mol H2SO4.......24 g Mg
72 g MgSO4..........x g H2SO4........y moli H2SO4........z g Mg
x = 58,8 g H2SO4
y = 0,6 moli H2SO4
z = 14,4 g Mg