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sedletskaya199
@sedletskaya199
July 2022
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Отметь в каждой реакции:
1)степени окисления элементов;
2)окислитель и восстановитель.
а)H2+S=H2S
б)Zn+2HCI=ZnCI2+H2|^
в)2H2+O2=2H2O
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nicolenicole
Степень окисления:
а) 0 (H2) + 0 (S)= +1 -2 (H2S)
б) 0 (Zn) + +1 -1 (HCl) = +2 -1 (ZnCl2) + 0 (H2)
в) 0 (H2) + 0 (О2) = +1 -2 (H2O)
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Answers & Comments
а) 0 (H2) + 0 (S)= +1 -2 (H2S)
б) 0 (Zn) + +1 -1 (HCl) = +2 -1 (ZnCl2) + 0 (H2)
в) 0 (H2) + 0 (О2) = +1 -2 (H2O)