December 2018 1 26 Report
Dla poniższych równań reakcji chemicznych dobierz współczynniki stechiometryczne metodą bilansu elektronowego:
a ) ...K₂Cr₂O₇+ ...H₂SO₄+...Na₂SO₃---> ...Na₂SO₄+ ...Cr₂(SO₄)₃+ ...K₂SO₄ + ...H₂O
b) ....HNO₃+ ...HCl---> ...NOCL+ ....Cl₂ + ...H₂O
c) ....FSO₄+ ...HIO₃+ ...H₂SO₄----> ...I₂+ ...Fe₂(SO₄)₃+ ...H₂O
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