April 2019 0 14 Report
W wyniku reakcji 2,8g żelaza z 2,4g siarki otrzymano:
A. FeS, mFe : mS = 7 : 4
B. Fe₂S₃, mFe : mS = 7 : 6
C. FeS₂, mFe : mS = 7 : 8
D. Fe₂S₃, mFe : mS = 7 : 3
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