February 2019 0 39 Report
prosze o uzupelnienie wspolczynnikow sechiometrycznych reakcji redox

1) K2Cr2O7 + H2S + H2SO4 => K2SO4 + Cr2(SO4)3 + S + H2O

2) K2Cr2O7 + SnCl2 + HCl => CrCl3 + SnCl4 + KCl + H20

3) CrCl3 + Cl2 + KOH => K2CrO4 + KCL + H2O




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