March 2022 0 4 Report
Uzupelnij indeksy stechmiotryczne a) 4Cr + 3O2 = 2Crx Oy
X= … Y=…

b) PbxOy + 4H2 = 3Pb + 4H2O
x= … y= …

c= CxHy + 3O2 = 2CO2 + 2H2O
x= …. y= ….

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