Which is most likely a compound formed with covalent bonds? a. two atoms from opposite sides of the periodic table b. two atoms with low ionization energies c. two atoms that transfer 3 electrons d. two atoms that share 3 pairs of electrons

Answer is: hydrogen is being oxidized.chemical reaction: co₂ + h₂ → co + h₂o.oxidation half reaction: h₂ → 2h⁺ + 2e⁻.reduction half reaction: c⁺⁴ + 2e⁻ → c⁺².oxidation is increase of oxidation number, hydrogen change oxidation number from neutral charge (in molecule of hydrogen) to oxidation number +1 (in water).