Question

Egalati reactile prin metoda redox:
1.KCLO3+ H2SO4 = KCLO4+CLO2+KH+SO4+H2O
2. S+H2O=H2S+SO2
3.FeS2+O2=FeO3+SO2
Daca imi puteti explica si cum ati rezolvat as fi foarte recunoscator

Answer 1

S °+ H2O°--> H2S⁻²+S⁺⁴O2

S⁰  +2e=====> S⁻²    ori2---> pun2 la   H2S    si (2+1) la S

S⁰-4e===> S⁺⁴    

3S +? H2o---> 2H2S+ SO2...................egalez nr.at,H SI pun 2H2O

3S  + 2H2O----> 2H2S +SO2

 SI asta e scrisa Gresit!

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