Определить степени окисления элементов в соединениях:
HСlO, KHF2, K2CO3, KСlO3, HСlO4, NH4OH, NaClO2, H3PO4, K2Cr2O7
HСlO, KHF2, K2CO3, KСlO3, HСlO4, NH4OH, NaClO2, H3PO4, K2Cr2O7
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Answers & Comments
HCl: H+1 Сl-1;
KHF2: K+1 H+1 F-1;
K2CO3: K+1 C+4 O-2;
KClO3: K+1 Cl+5 O-2;
HClO4: H+1 Cl+7 O-2;
NH4OH: N-3 H+1 O-2 H+1
NaClO2: Na+1 Cl+3 O-2;
H3PO4: H+1 P+5 O-2;
K2Cr2O7: K+1 Cr+6 O-2
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