Ответ:
100%-69,94%=3,06%
x:y= 69,94/56:30,06/16=
1,249:1,879=1,249/1,249:1879/1,249=1:1,5°2:3= Fe203
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Ответ:
100%-69,94%=3,06%
x:y= 69,94/56:30,06/16=
1,249:1,879=1,249/1,249:1879/1,249=1:1,5°2:3= Fe203