Zadanie 4
a) SO2
x=II*2
x=IV
b) H2SO4
2*I+x=4*II
II+x=VIII
x=VI
c) SO3
x=3*II
d) H2SO3
2*I+x=3*II
II+x=VI
Zadanie 5
1. S+O2--->SO2
2. 2 SO2+O2--->2 SO3
3. SO3+H2O--->H2SO4
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Zadanie 4
a) SO2
x=II*2
x=IV
b) H2SO4
2*I+x=4*II
II+x=VIII
x=VI
c) SO3
x=3*II
x=VI
d) H2SO3
2*I+x=3*II
II+x=VI
x=IV
Zadanie 5
1. S+O2--->SO2
2. 2 SO2+O2--->2 SO3
3. SO3+H2O--->H2SO4