What are the oxidation numbers of the atoms in this reaction? check all that apply. ch4(g) + 2o2(g) → co2(g) + 2h2o(g) -4 for c in ch4 +4 for c in co2 -2 for o in all substances +1 for h in both ch4 and h2o +4 for o in h2o

Answers are:
-4 for C in CH4, because carbon has greater electronegativity than hydrogen and he attracts shared electrons.
+4 for C in CO2, because carbon has smaller electronegativity than oxygen.
+1 for H in both CH4 and H2O, because hydrogen has amaller electronegativity than both carbon and oxygen.