2022年8月20日 · Usually this is synthesized by deprotonating hydrogen peroxide with $\ce{MgO}$, but ozone would be a strong enough oxidizing agent to oxidize $\ce{MgO}$ to …

2024年10月16日 · Peroxides may also form like $\ce{MgO2}$. What happens in a reaction mixture is that when oxygen is in excess, the nascent Oxygen atoms that are formed quickly …

2013年3月30日 · $\\ce{Mg + O2 → MgO}$ Magnesium, oxygen and magnesium oxide form the above equation. How? What do I need to learn to do this? atomic numbers/ valencies?

2020年4月16日 · Tl, dr: Chemists would generally say "No". But it's not as cut and dried as one might think. The alkaline character of magnesia and heavier Group 2 oxides is one of many …

2017年10月5日 · So on an exam paper they have said to find out the enthalpy of formation for MgO is : ∆H = 148 + 736 + 1450 + 496/2 - 141 + 798 – 3791 = –552 kJ mol–1 , however if you …

2014年4月21日 · Out of the four equations that you have, you need to find $\Delta H^\circ_\mathrm f$ of $\ce{MgO}$, or rather, the $\Delta H$ value of the reaction

2015年10月13日 · First off, to not overlook the obvious, both reactions ares thermodynamically favored. $$\ce{MgO (s) + H2O (l) -> Mg(OH)2 (aq)} \\ \Delta G_\pu{298K}^\circ = \pu{-833 ...

2019年12月24日 · The decomposition of H2O2 is complex and has been the source of several studies. On iron oxide surface, here is a cited work `Catalytic Decomposition of Hydrogen …

2016年7月2日 · $\begingroup$ One group of peroxides you miss in your list: MgO2, CaO2, SrO2, BaO2. There is even evidence that the alkaline earth metals listed here form superoxides and …

Here is a simple minded answer. High melting point compounds tend to follow the octet rule - the number of valence electrons sums to 8.