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Zinkové pliešky sú ponorené do kadičiek s roztokmi solí: CoSO4, CuSO4, NiSO4, Al2(SO4)3. V ktorej kadičke neprebieha redoxný dej?
E°(Cu/Cu2+) = 0,337 V; E°(Co/Co2+) = -0,28 V; E°(Al/Al3+) = -1,66 V; E°(Zn/Zn2+) = -0,736 V; E° (Ni/Ni2+) = -0,25 V
Prosím o pomoc s úlohou: Aká je hodnota slnečnej konštanty, ak plocha s veľkosťou 100 cm2 prijala za 5 minút teplo 4 kJ ? Ďakujem.
Dobrý deň, prosím Vás máte nejakú pomôcku na rozlišovanie dokonavého vidu od nedokonavého, ďakujem.
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