2017年1月10日 · Examples of other oxygen molecules are: 0 3 which is ozone (trioxygen), there's O 4 that is metastable and is actaully made up of two O 2 molecules (tetraoxygen), and O 8 which is a form of pressurised solid O 2 (when you freeze O 2 to below around 55 Kelvin and pressurise to around 10 GPa (1.45e+6 psi)it becomes known as ε oxygen or red ...

2018年11月25日 · Diamond and graphite are both arrangements of carbon atoms, each with very different properties and yet they are both pure carbon, as is a single carbon atom, of course. Likewise $\ce{O2}$ is as much oxygen as atomic oxygen is. The only complication is that what we habitually think of as oxygen is oxygen as a gas comprised of $\ce{O2 ...

2017年1月28日 · The oxygen atom at this point has three bonds and has a net positive charge. How can this happen? Oxygen has 2 missing electrons in the valence shell. Therefore it can only form 2 bonds at the most, if both are sigma bonds. Does it mean the 3rd bond is not covalent? Can it happen with a hydrogen or an ionic bond?

2025年1月16日 · Oxygen has a melting point of -218.79°C and a freezing point of -218.79°C. At this temperature, oxygen changes from a gas to a liquid or a liquid to a solid.

2016年10月15日 · Oxygen can have 6 different oxidation states. Which oxidation state oxygen is in depends on which element oxygen is bonded to and what ratio the two elements are at:-2: This occurs in oxides e.g. $\ce{OsO4}$ and $\ce{RuO4}$-1: This occurs in peroxides e.g. $\ce{H2O2}$

2020年6月2日 · The observation that oxygen did not seem to strictly follow Curie's law (where $1/\chi$ is linear with temperature) has been known since Kammerlingh Onnes pointed it out in the 1910's. By the late 1920's, it was known that diluting the liquid with nitrogen preserved Curie's law, suggesting that it took oxygen in close proximity to other oxygen ...

2025年1月10日 · When mixed together, nitrogen and oxygen form a mixture of gases known as air. Air is composed primarily of nitrogen (around 78%) and oxygen (around 21%), along with trace amounts of other gases.

Note that nitrous oxide ($\ce{N2O}$) is also a supporter of combustion, which means that you can use it to carry out a combustion reaction without oxygen--but this is only because $\ce{N2O}$ generates oxygen itself. Since combustion is a reaction with oxygen, what's left for oxygen to oxidise? Itself? Not likely.

2024年6月7日 · What is the coefficient for oxygen in the balanced equation of C5H12 plus O2 equals Co2 plus H2O? The balanced equation is: C5H12 + 8O2 → 5CO2 + 6H2O. Therefore, the coefficient for oxygen in ...

2024年6月5日 · The oxygen itself would be an element, not a mixture. What is the condensation point for gas? The condensation point for a gas is the temperature at which the gas changes into its liquid state ...