mFe:mO=7:3/*16
112:48
112u:56u=2 atomy Fe
48u:16u=3 atomy O
7---x%
10---100%
x=70%Fe
Wzór: Fe2O3
Nazwa: tlenek żelaza(III)
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mFe:mO=7:3/*16
112:48
112u:56u=2 atomy Fe
48u:16u=3 atomy O
7---x%
10---100%
x=70%Fe
Wzór: Fe2O3
Nazwa: tlenek żelaza(III)