12 Hydrogen peroxide, H-O-O-H, decomposes to form water and oxygen.2H_2O_2(g)→2H_2O(g)+O_2(g)The bond energies are shown in the table. The reaction is exothermic.bond bond energy in kJ/mol O-H+460O-O+150O=O+496What is the energy change for the reaction? B A -346kJ/...
Hydrogen peroxide is decomposed into water and oxygen in the presence of catalase. Three hydrogen peroxide concentrations, 0.6%, 1% and 2% (w/v), were applied over three operating periods at the same dosage to test the effects of hydrogen peroxide concentration on nitrogen removal and growth of...
Hydrogen peroxide is a very unstable compound that quickly decomposes into water and oxygen, releasing large amounts of heat. The uses of hydrogen peroxide largely depend on its concentration, with only low-percentage solutions sold for consumer use and higher concentrations used for various industrial...
Hydrogen peroxide often decomposes exothermically into water and oxygen gas spontaneously due to the presence of weak O-O bond (210kJ mol -1 )which can be broken easily: 2 H 2 O 2 (l) → 2 H 2 O (l)+ O 2 (g) + Energy ...
4. In the laboratory, oxygen is prepared using a hydrogen peroxide solution and manganeser dioxide. Which of the following statements is correct?( )A. hydrogen peroxide alone cannot produce oxygen.B. manganeser dioxide can accelerate the decomposition of hydrogen peroxide.C. manganeser dioxide can...
synthesisofhydrogenperoxide(H 2 O 2 )isaveryimportant subject.Earlyreportedprocesses,however,requirehydrogen (H 2 )andpalladium-basedcatalysts.Hereinwepropose aphotocatalyticprocessforH 2 O 2 synthesisdrivenbymetal- freecatalystswithearth-abundantwaterandmolecularoxygen (O 2 )asresourcesundersunlightirradiatio...
Data related to an oxygen atom transfer from hydrogen peroxide or organyl hydroperoxide to unsaturated and saturated hydrocarbons, trisubstituted phosphines, arsines or stibines catalyzed with metal complexes are discussed. A peroxo metal complex with the non-symmetrically coordinated peroxo ligand resemblin...
hydrogen peroxide noun : an unstable liquid compound containing hydrogen and oxygen and used especially for bleaching and as an antiseptic Medical Definition hydrogen peroxide noun : an unstable compound H2O2 used especially as an oxidizing and bleaching agent and as an antiseptic More...
aSodium perborate degrades in water to yield trace amounts of hydrogen peroxide (50-500 ppm), providing an antimicrobial action. Instilled in the eye, hydrogen peroxide is rapidly degraded by catalases to yield water and oxygen. 正在翻译,请等待...[translate]...
Even though it is a powerful and highly toxic chemical it can have a use in the aquarium if used in low dosages and with great care. When added to water it rapidly breaks down into water and oxygen. It is sensitive to light and rapidly breaks down in its presence. ...