3:2:1
2Al+3H2SO4=Al2(SO4)3+3H2↑
54 6
5.4g x
x=0.6g
Mg+H2SO4=MgSO4+H2↑
24 2
4.8g x
x=0.4g
2Na+H2SO4=Na2SO4+H2↑
46 2
4.6g x
x=0.2g
0.6:0.4:0.2=3:2:1
3:2:1
2Al+3H2SO4=Al2(SO4)3+3H2↑
54 6
5.4g x
x=0.6g
Mg+H2SO4=MgSO4+H2↑
24 2
4.8g x
x=0.4g
2Na+H2SO4=Na2SO4+H2↑
46 2
4.6g x
x=0.2g
0.6:0.4:0.2=3:2:1