Zadanie 1
4u 36 u
2 H2+O2--->2 H2O
200 g xg
4u---36u
200g---xg
x=1800 g
Zadanie 2
46 g 2 mol
2 Na+2 H2O--->2 NaOH+H2
5 g x mol
46 g---2 mol
5 g---x mol
x=0,22 mol
Zadanie 3
2 mol 80 g
2 Mg+O2--->2 MgO
3 mol xg
2 mol---80 g
3 mol---xg
x=120 g
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Zadanie 1
4u 36 u
2 H2+O2--->2 H2O
200 g xg
4u---36u
200g---xg
x=1800 g
Zadanie 2
46 g 2 mol
2 Na+2 H2O--->2 NaOH+H2
5 g x mol
46 g---2 mol
5 g---x mol
x=0,22 mol
Zadanie 3
2 mol 80 g
2 Mg+O2--->2 MgO
3 mol xg
2 mol---80 g
3 mol---xg
x=120 g