December 2018 1 21 Report
Dla poniższych równań reakcji chemicznych dobierz współczynniki stechiometryczne metodą bilansu elektronowego:
a) ....Zn+ ....KOH+ ...H₂O--> ...[Zn(OH)₄]K₂+ ...H₂
b) ....K₂Cr₂O₇+ ...HBr--> ...CrBr₃+ ...Br₂+ ...H₂O + ...KBr
c) ...CH₃-CHO + ....Ag₂O---> ....CH₃-COOH+ ...Ag
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