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  1. What is the difference between O & O2 - Chemistry Stack Exchange

    Jan 9, 2017 · The common confusion here is that two very different things have the same name. O is a free oxygen atom and 2 O X 2 is two oxygen atoms chemically bound to form an oxygen molecule. …

  2. Whats the difference between 2O and O2 [duplicate]

    May 30, 2017 · I just saw something in a chemistry lesson what got me confused. What is the difference between $\\ce{2O}$ and $\\ce{O2}$? Thanks for the help!

  3. orbitals - What is the origin of the differences between the MO …

    Jul 18, 2014 · S-p mixing is the primary cause of the difference in the molecular orbitals of nitrogen and oxygen, which is influenced by the initial atomic orbital energies. The lighter second period elements …

  4. Enthalpy of formation of O2 - Chemistry Stack Exchange

    Apr 13, 2025 · The enthalpy of formation of O2 is zero at any particular temperature. The element is already in its ''standard state'' . Also please note that as per IUPAC, there is no standard …

  5. Why do we call O2 oxygen? - Chemistry Stack Exchange

    Nov 25, 2018 · But why do we call O2 oxygen is my question? I thought only an atom with 8 protons can be called oxygen?

  6. Why is oxygen paramagnetic? - Chemistry Stack Exchange

    May 3, 2016 · Paramagnetic molecules are molecules that have single electrons. When I draw the lewis structure of $\\ce{O2}$, it appears to be a diamagnetic structure. What makes it paramagnetic?

  7. Enthalpy of the reaction between hydrogen and oxygen

    The reaction between hydrogen and oxygen to yield water vapor has ΔH∘ = − 484kJ Δ H ∘ = 484 k J. How much pV p V work is done, and what is the value of ΔE Δ E in kilojoules for the reaction of 0.50 …

  8. What form of energy is produced by 2H2 + O2 -> 2H2O reaction?

    Dec 10, 2022 · Answer 1 does not describe the environment in my post. Thermodynamics says nothing about how the energy of chemical bonds is converted to the kinetic energy of H2O produced by this …

  9. What is the LUMO and HOMO in and O2 diatomic

    Dec 11, 2021 · In the molecular orbital (MO) diagram for the O2 O 2 diatomic, the 2π∗g 2 π g ∗ contains two unpaired electrons. This is certainly the HOMO, as it is the highest molecular orbital with electrons.

  10. How to find the infrared absorption spectrum of O2 and N2?

    Apr 17, 2024 · There is a good reason for not being able to find the mid-IR absorption spectra of nitrogen and oxygen. Their vibrations are infrared inactive. Infrared absorption peaks are observed …