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  1. 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.

  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. 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 …

  4. 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 …

  5. 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 …

  6. 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 …

  7. 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 …

  8. Interpreting from phase diagram whether O2 will float or sink

    Dec 12, 2017 · Will $\ce {O2 (s)}$ float or sink on $\ce {O2 (l)}$? I quickly sketched the phase diagram of oxygen: Pressure of the molecules will affect how compact the molecules are in …

  9. Enthalpy of the reaction between hydrogen and oxygen

    In this case, the enthalpy of $484\ \mathrm {kJ}$ is released when $2\ \mathrm {mol}$ of hydrogen gas react with $1\ \mathrm {mol}$ of oxygen gas to form $2\ \mathrm {mol}$ of …

  10. combustion - Why are there two measurements for O2 …

    Jan 6, 2025 · Why is oxygen concentration in flue gases (biomass combustion, recovery boilers) reported in two forms: dry flue gases and wet flue gases? This raises several questions for …