Is the formation of water and oxygen by hydrogen peroxide an oxidation reaction? By the way, if the reaction produces oxygen, but there is no oxygen in the reactant (as reflected by hydrogen peroxide), is it an oxidation reaction?
Positive and negative electrode reaction equations for the generation of ozone and hydrogen peroxide from water and oxygen under discharge conditions
2O2 + H2O = discharge = O3 + H2O2
Cathode: 2O2 + e = = = O3 + O - (- 1 valence)
Anode: H2O - E + O - = = H2O2
Does ozone react with water to produce hydrogen peroxide?
Ozone cannot react with water to produce hydrogen peroxide
Some metal peroxides (such as calcium peroxide, CaO2, sodium peroxide, Na2O2, etc.) can react with water to produce corresponding alkali and oxygen. For example, 2cao2 + 2H2O = 2ca (OH) 2 + O2. A certain amount of calcium peroxide is often added to water during long-distance transportation of live fish. Please analyze the purpose of adding calcium peroxide? Can sodium peroxide be used instead of calcium peroxide? Explain your reasons
Calcium peroxide reacts with water to release oxygen, which just complements the consumption of oxygen in water during fish fry movement; Sodium peroxide reacts with water to produce sodium hydroxide and oxygen. Sodium hydroxide is highly corrosive and will cause the death of fish
Therefore, the answer is: the purpose of adding calcium peroxide is to provide oxygen and sterilization (1 point). Sodium peroxide cannot be used to replace calcium peroxide (1 point), because sodium peroxide reacts with water to produce highly corrosive sodium hydroxide (1 point)
How can sodium peroxide react to produce hydrogen peroxide?
And water, but it is only an intermediate product, because the reaction of sodium peroxide with water will release a lot of heat and decompose the intermediate product hydrogen peroxide
The main processes are:
Sodium peroxide + water = sodium hydroxide + hydrogen peroxide
Hydrogen peroxide decomposes into water and oxygen when heated
Sodium peroxide reacts with water to form hydrogen peroxide or oxygen
Oxygen. Because hydrogen peroxide is easy to further decompose into water and oxygen, it is ultimately oxygen