2014年5月1日 · Is there a complete list of all the half equations for $\ce{H2O2}$ - both oxidation and reduction, in acidic and alkaline conditions?

2016年1月4日 · When hydrogen peroxide is mixed with potassium permanganate, oxygen gas and water vapour are formed, according to the reaction : $$\ce{2MnO4- + 3H2O2 -> 2MnO2 + 2H2O + 3O2 + 2OH-}$$ This reaction is spontaneous, and exothermic. It is an example of a redox reaction, with the following half reactions occurring (data from Vanýsek):

2021年10月27日 · For the oxidation half-equation you start with (in acid solution) $\ce{H2O2 -> O2}$ Clearly the hydrogen on the left is given off as $\ce{H^+(aq)}$ and the two oxygen atoms, being oxidized from -1 to 0 each, lose two electrons total.

2020年2月3日 · In words, the enzyme binds to the first molecule of hydrogen peroxide, release one molecule of water and holds on to the other oxygen atom (via the iron bound to heme bound to the enzyme). Then, the second molecule of hydrogen peroxide binds to the enzyme, which again release water and holds on to the second oxygen atom.

2019年5月27日 · Interestingly, as early as 1934 Haber and Weiss (Ref. 1) proposed that $\ce{HO2^.}$ is formed in the decomposition of hydrogen peroxide. The subsequent reaction of the transient superoxide radical anion with hydrogen peroxide has been determined to also form the hydroxyl radical (Ref. 2).

Hydrogen peroxide decomposition on manganese oxide (pyrolusite): Kinetics, intermediates, and mechanism.

2014年3月3日 · I think I've managed to write down the correct reaction: $$\ce{H2O2 + KI + H2SO4 -> K2SO4 + I2 + H2O}$$ Now I need to balance this using the ion-electron method in an acidic environment.

2020年1月13日 · The question of how vinegar + hydrogen peroxide + table salt can be used to etch copper has been asked before (Full equation when using vinegar, hydrogen peroxide, and salt to etch copper). However, the accepted answer seems to miss a key fact when observing this reaction, so I wanted to ask for clarification in the hope that someone can ...

What is the full chemical equation when you use the following reactants to etch copper: vinegar / acetic acid (5%) $\ce{CH3COOH (aq)}$ hydrogen peroxide (3%) $\ce{H2O2 (aq)}$ salt $\ce{NaCl (s)}$ copper $\ce{Cu (s)}$ Yes there are previous questions asking the same thing (one and two). However, the answers to both give only parts of the ...

2014年5月17日 · Add about 10 mL of drugstore 3% hydrogen peroxide. The solution immediately turns dark brown as the iodide ions are oxidized to elemental iodine, which precipitates out. Swirl the test tube to suspend the iodine and pour the liquid through a funnel with a folded piece of filter paper to capture the iodine crystals.