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

    2017年1月9日 · 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]

    2017年5月30日 · 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. Why do we call O2 oxygen? - Chemistry Stack Exchange

    2018年11月25日 · But why do we call O2 oxygen is my question? I thought only an atom with 8 protons can be called oxygen?

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

    2014年7月18日 · 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 …

  5. Why is oxygen paramagnetic? - Chemistry Stack Exchange

    2016年5月3日 · 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?

  6. 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 mol …

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

    2022年12月10日 · 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 …

  8. stability - Why is O2 a biradical? - Chemistry Stack Exchange

    $\\ce{O2}$ has a double bond in its normal form. That is $\\ce{O=O}$. There are no unpaired electrons in this case are there since there are 2 lone pairs on each oxygen. However 1 resonance structure

  9. Enthalpy of formation of O2 - Chemistry Stack Exchange

    2025年4月13日 · 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 temperature, it …

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

    2021年12月11日 · 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 …