Elemente si combinatii chimice
Elemente si combinatii chimice
Elemente si combinatii chimice
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In water, there are many pos<strong>si</strong>ble reactions:<br />
O 2<br />
O 2<br />
O2 O2 + 4H +<br />
+ 4e -<br />
+ 2H2O +<br />
+ 2H + + 2e- + H2O + 2e- 4e -<br />
= 2H2O ε0 = 4OH- ε 0<br />
= +1.229 V<br />
= +0.401 V<br />
= H2O2 ε0 = +0.682 V<br />
+ HO -<br />
2 = -0.076 V<br />
= OH -<br />
ε 0
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