Shanxian Chemical
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Zinc Hydrogen Peroxide Reaction
Zinc reacts with hydrogen peroxide
Zinc is active and often reacts with various substances. Hydrogen peroxide is also an oxidizing compound. When the two meet, it becomes quite strange.
Zinc is put into the liquid of hydrogen peroxide, and at first, the liquid moves slightly, which seems to be slightly blue. Suddenly, bubbles gradually emerge and escape from the liquid surface. The cap zinc is oxidized by hydrogen peroxide, and the zinc atom loses electrons and dissolves into zinc ions. Its electrons are transferred to the oxygen atom of hydrogen peroxide. The valence state of oxygen in hydrogen peroxide decreases, and then it decomposes to produce oxygen and water.
The chemical formula is as follows: $Zn + H_ {2} O_ {2} + 2H ^ {+}\ longrightarrow Zn ^ {2 + } + 2H_ {2} O $. In this formula, the hydrogen ion is either from the weak ionization of hydrogen peroxide, or the presence of other acids in the system.
Looking at the reaction, the gas is effervescent, if boiling. The heat is also released, and the temperature of the liquid gradually rises. This is because the reaction is exothermic. And with the progress of the reaction, the zinc gradually disappears, and the liquid color often does not change greatly, because the zinc ion is colorless and the water is clear.
The reaction between zinc and hydrogen peroxide is not just a simple change in the field of chemistry, but also the wonderful principle of redox, the conversion of energy, and is useful in industry and scientific research. If it is used in chemical industry, it can be used to make zinc salts; in scientific research, or to explore the mechanism of redox.
The combination of these two shows the wonders of chemical changes, which attracts people to explore the secrets of nature.
Zinc is active and often reacts with various substances. Hydrogen peroxide is also an oxidizing compound. When the two meet, it becomes quite strange.
Zinc is put into the liquid of hydrogen peroxide, and at first, the liquid moves slightly, which seems to be slightly blue. Suddenly, bubbles gradually emerge and escape from the liquid surface. The cap zinc is oxidized by hydrogen peroxide, and the zinc atom loses electrons and dissolves into zinc ions. Its electrons are transferred to the oxygen atom of hydrogen peroxide. The valence state of oxygen in hydrogen peroxide decreases, and then it decomposes to produce oxygen and water.
The chemical formula is as follows: $Zn + H_ {2} O_ {2} + 2H ^ {+}\ longrightarrow Zn ^ {2 + } + 2H_ {2} O $. In this formula, the hydrogen ion is either from the weak ionization of hydrogen peroxide, or the presence of other acids in the system.
Looking at the reaction, the gas is effervescent, if boiling. The heat is also released, and the temperature of the liquid gradually rises. This is because the reaction is exothermic. And with the progress of the reaction, the zinc gradually disappears, and the liquid color often does not change greatly, because the zinc ion is colorless and the water is clear.
The reaction between zinc and hydrogen peroxide is not just a simple change in the field of chemistry, but also the wonderful principle of redox, the conversion of energy, and is useful in industry and scientific research. If it is used in chemical industry, it can be used to make zinc salts; in scientific research, or to explore the mechanism of redox.
The combination of these two shows the wonders of chemical changes, which attracts people to explore the secrets of nature.
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