September 2018 2 18 Report

Które z poniższych reakcji zachodzą samorzutnie? A czy B:

1) A Zn + Fe2+ --> Zn2+ +Fe

B Zn2+ + Fe --> Zn + Fe2+

2) A Cu + 2Fe3+ --> Cu2+ + 2Fe2+

B Cu2+ + 2Fe2+ --> Cu + 2Fe3+

3) A 2Bi3+ + 3Mg --> 2Bi + 3Mg2+

B 2Bi + 3Mg2+ -->2Bi3+ + 3Mg


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