Question

Определить степени окисления элементов в молекулярных формулах: NaH, SiH4, SbH3, HBr, ScH3, CuF2, FeF3, MoF6, SF4, Cr2O3, K2O, ZnO, SO2, Br2O5, CrO3, Mn2O7, FeO4, Na3P, Cu3N2, Ag2S, Cr2C3, Al4Si3, SeBr4, P2S3, NCl5, CSi, B2Te3, HClO2, H8C4O2, H2CO2, H3AlO3, H2S2O7, H2MnO4, Mn(NO3)2, Ca(OH)2, Al(HS)3, CuSO3, Ba(HSO3)2, Sn(SO4)2, Sb(NO2)5, K3PO4, Fe2(HPO4)3, Cr2(SiO3)3

Answer 1

Na+1 H-1, H+1 Si-4, H+3 Sb -3, Br-1 H+1, H+3 Sc-3, F-1 Cu+2, F-1 Fe+3, F-1 Mo+6, F-1 S+4, O-2 Cr+3, O-2 K+1, O-2 Zn+2, O-2 S+4, O-2 Br+5, O-2 Cr+6, O-2 Mn+7, O-2 Fe+4
P-3 Na+1, N-3 Cu+2, S-2 Ag+1, C-2 Cr+3, Si-4 Al+3, Br-1 Se+4, S-2 P+3, Cl-1 N+5, Si-2 C+2, Te-2 B+3, O-2 H+1 Cl+3, O-2 H+1 C+2, O-2 H+1 Al+3, O-2 H+1 S+6

Answer 2

Oxidation States in Molecular Formulas

Here are the oxidation states of the elements in the given molecular formulas:

1. NaH (Sodium hydride): Na has an oxidation state of +1, H has an oxidation state of -1 [[1]]. 2. SiH4 (Silane): Si has an oxidation state of -4, H has an oxidation state of +1 [[2]]. 3. SbH3 (Antimony trihydride): Sb has an oxidation state of -3, H has an oxidation state of +1 [[3]]. 4. HBr (Hydrogen bromide): H has an oxidation state of +1, Br has an oxidation state of -1 [[4]]. 5. ScH3 (Scandium trihydride): Sc has an oxidation state of +3, H has an oxidation state of -1 [[5]]. 6. CuF2 (Copper(II) fluoride): Cu has an oxidation state of +2, F has an oxidation state of -1 [[6]]. 7. FeF3 (Iron(III) fluoride): Fe has an oxidation state of +3, F has an oxidation state of -1 [[7]]. 8. MoF6 (Molybdenum(VI) fluoride): Mo has an oxidation state of +6, F has an oxidation state of -1 [[8]]. 9. SF4 (Sulfur tetrafluoride): S has an oxidation state of +4, F has an oxidation state of -1 [[9]]. 10. Cr2O3 (Chromium(III) oxide): Cr has an oxidation state of +3, O has an oxidation state of -2 [[10]]. 11. K2O (Potassium oxide): K has an oxidation state of +1, O has an oxidation state of -2 [[11]]. 12. ZnO (Zinc oxide): Zn has an oxidation state of +2, O has an oxidation state of -2 [[12]]. 13. SO2 (Sulfur dioxide): S has an oxidation state of +4, O has an oxidation state of -2 [[13]]. 14. Br2O5 (Bromine pentoxide): Br has an oxidation state of +5, O has an oxidation state of -2 [[14]]. 15. CrO3 (Chromium(VI) oxide): Cr has an oxidation state of +6, O has an oxidation state of -2 [[15]]. 16. Mn2O7 (Manganese(VII) oxide): Mn has an oxidation state of +7, O has an oxidation state of -2 [[16]]. 17. FeO4 (Iron(VI) oxide): Fe has an oxidation state of +6, O has an oxidation state of -2 [[17]]. 18. Na3P (Sodium phosphide): Na has an oxidation state of +1, P has an oxidation state of -3 [[18]]. 19. Cu3N2 (Copper(II) nitride): Cu has an oxidation state of +2, N has an oxidation state of -3 [[19]]. 20. Ag2S (Silver sulfide): Ag has an oxidation state of +1, S has an oxidation state of -2 [[20]]. 21. Cr2C3 (Chromium(III) carbide): Cr has an oxidation state of +3, C has an oxidation state of -4 [[21]]. 22. Al4Si3 (Aluminum silicide): Al has an oxidation state of +3, Si has an oxidation state of -4 [[22]]. 23. SeBr4 (Selenium tetrabromide): Se has an oxidation state of +4, Br has an oxidation state of -1 [[23]]. 24. P2S3 (Phosphorus sesquisulfide): P has an oxidation state of +3, S has an oxidation state of -2 [[24]]. 25. NCl5 (Nitrogen pentachloride): N has an oxidation state of +5, Cl has an oxidation state of -1 [[25]]. 26. CSi (Carbon monosilicide): C has an oxidation state of -4, Si has an oxidation state of +4 [[26]]. 27. B2Te3 (Boron telluride): B has an oxidation state of +3, Te has an oxidation state of -2 [[27]]. 28. HClO2 (Chlorous acid): H has an oxidation state of +1, Cl has an oxidation state of +3, O has an oxidation state of -2 [[28]]. 29. H8C4O2 (Tetraoxalate): H has an oxidation state of +1, C has an oxidation state of +3, O has an oxidation state of -2 [[29]]. 30. H2CO2 (Carbonic acid): H has an oxidation state of +1, C has an oxidation state of +4, O has an oxidation state of -2 [[30]]. 31. H3AlO3 (Aluminum hydroxide): H has an oxidation state of +1, Al has an oxidation state of +3, O has an oxidation state of -2 [[31]]. 32. H2S2O7 (Peroxymonosulfuric acid): H has an oxidation state of +1, S has an oxidation state of +6, O has an oxidation state of -2 [[32]]. 33. H2MnO4 (Permanganic acid): H has an oxidation state of +1, Mn has an oxidation state of +7, O has an oxidation state of -2 [[33]]. 34. Mn(NO3)2 (Manganese(II) nitrate): Mn has an oxidation state of +2, N has an oxidation state of +5, O has an oxidation state of -2 [[34]]. 35. Ca(OH)2 (Calcium hydroxide): Ca has an oxidation state of +2, O has an oxidation state of -2, H has an oxidation state of +1 [[35]]. 36. Al(HS)3 (Aluminum hydrogen sulfide): Al has an oxidation state of +3, H has an oxidation state of +1, S has an oxidation state of -2 [[36]]. 37. CuSO3 (Copper(II) sulfite): Cu has an oxidation state of +2, S has an oxidation state of +4, O has an oxidation state of -2 [[37]]. 38. Ba(HSO3)2 (Barium bisulfite): Ba has an oxidation state of +2, H has an oxidation state of +1, S has an oxidation state of +4, O has an oxidation state of -2 [[38]]. 39. Sn(SO4)2 (Tin(IV) sulfate): Sn has an oxidation state of +4, S has an oxidation state of +6, O has an oxidation state of -2 [[39]]. 40. Sb(NO2)5 (Antimony(V) nitrite): Sb has an oxidation state of +5, N has an oxidation state of +3, O has an oxidation state of -2 [[40]]. 41. K3PO4 (Potassium phosphate): K has an oxidation state of +1, P has an oxidation state of +5, O has an oxidation state of -2 [[41]]. 42. Fe2(HPO4)3 (Iron(III) hydrogen phosphate): Fe has an oxidation state of +3, H has an oxidation state of +1, P has an oxidation state of +5, O has an oxidation state of -2 [[42]]. 43. Cr2(SiO3)3 (Chromium(III) silicate): Cr has an oxidation state of +3, Si has an oxidation state of +4, O has an oxidation state of -2 [[43]].

Please let me know if you need the oxidation states for any other molecular formulas!