okresl wartosci stopni utlenienia dla pierwiastkow w nastepujacych zwiazkach H2, Na, NaCl, HNO3, Zn2+
H2 --- H2(0)
Na --- Na(0)
NaCl --- Na(+I), Cl(-I)
HNO3 --- H(+I), N(+V), O(-II)
Zn2+ --- Zn2+(+II)
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H2 --- H2(0)
Na --- Na(0)
NaCl --- Na(+I), Cl(-I)
HNO3 --- H(+I), N(+V), O(-II)
Zn2+ --- Zn2+(+II)