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  1. 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?

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

    Jan 9, 2017 · What is the difference between $\ce {O}$ and $\ce {O2}$. If C is carbon and then why $\ce {O2}$ is oxygen.

  3. 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 …

  4. 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.

  5. 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 …

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

    And finally there is $\ce {O#O}$ where both oxygens are positively charged and are free radicals. Why are both positively charged? It is because 3 bonds already to oxygen means 1 lone pair and 5 …

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

    Jul 18, 2014 · This phenomenon is explained by s-p mixing. All the elements in the second period before oxygen have the difference in energy between the 2s and 2p orbital small enough, so that s-p mixing …

  8. 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?

  9. What bonds are formed between O2 molecules? - Chemistry Stack …

    Sep 7, 2022 · The ground state for the O2 molecule is a triplet diradical; the 2 electrons are in antibonding orbitals with parallel spins. A higher energy singlet state with paired spins also exists. …

  10. 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 …