Question

chemical properties of H2O2​

Answer 1

Answer:

H2O2 is Hydrogen Peroxide.

Hydrogen peroxide is a versatile chemical used for disinfection of cuts, bruises, surfaces. While people swear by it for sanitary purposes, it has also found its uses as a bleaching agent, and an ingredient in the manufacture of acne medications.

The science of this acidic compound is incredibly simple. Before continuing, note that this chemical is often sold in 3% and 6% concentrations, which differ considerably.

Explanation:

Answer 2

Answer:

Decomposition.

Oxidizing agent

Reducing agent

Explanation:

•  It decomposes to form water and oxygen when exposed to air. The decomposition is exothermic and is accelerated by heating, addition of alkalis and introduction of finely divided metals such as platinum, gold and manganese(IV)oxide which act as a catalyst.

              2H2O2(l) → 2H2O(l) + O2(g)

Mineral acids inhibits decomposition of Hydrogen Peroxide and are often added to commercial Hydrogen Peroxide to minimize its decomposition

•       It is a strong oxidising agent as it can readily donate its oxygen or accept electrons.In the process, it is reduced to water. Its oxidative property can be seen in its reaction with potassium iodide solution that has been acidified with tetraoxosulphate(VI) acid, where it liberates iodine. The tetraoxosulphate(VI) acid first reacts with the iodide to form iodic acid, HI, which is subsequently oxidized by hydrogen peroxide to liberate iodine. The oxidation process carried out by hydrogen peroxide is done by its acceptance of electrons from the iodide ion, and itself being reduced to water.

                 2KI(aq) + H2O(aq) +H2SO4(aq) →K2SO4(aq) + 2H2O(l) +I2(aq)

•         Hydrogen peroxide can also behave like a reducing agent when it reacts with more powerful oxidizing agents by either donating electrons or accepting oxygen. The reduction process leads to hydrogen peroxide itself being converted to gaseous oxygen. For instance, hydrogen peroxide reduces acidified potassium tetraoxomanganate(VII) solution making it colorless because the purple tetraoxomanganate(VII) ion is changed in to the pale pink manganese(II) ion.

  2KMnO4(aq) + 3H2SO4(aq) + 5H2O2(aq) → K2SO4(aq) + 2MnSO4(aq) 8H2O(l) + 5O2(g

Hydrogen peroxide can equally reduce chlorine to hydrochloric acid and silver oxide to the metal

Cl2(g) + H2O2(aq) → 2HCl(aq) + O2

 Ag2O(s) + H2O2(aq) → 2Ag(s) + H2O(l) O2