Shanxian Chemical
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Yeast Added to Hydrogen Peroxide Reaction
The reaction of yeast adding hydrogen peroxide
is to put yeast into a container containing hydrogen peroxide, and the change is very wonderful. Hydrogen peroxide, a chemical substance, gradually decomposes into water and oxygen under normal conditions, but the rate is slow.
Yeast contains a catalyst called catalase. When this enzyme encounters hydrogen peroxide, if the key is unlocked, it will accelerate its decomposition. As soon as the yeast enters the hydrogen peroxide, the reaction starts immediately. It can be seen that the bubbles in the solution are surging, which is the appearance of oxygen escaping.
From a microscopic perspective, hydrogen peroxide molecules ($H_ {2} O_ {2} $), under the action of catalase, fission into water molecules ($H_ {2} O $) and oxygen molecules ($O_ {2} $). The chemical reaction formula can be expressed as: $2H_ {2} O_ {2}\ stackrel {catalase }{=\!=\!=} 2H_ {2} O + O_ {2}\ uparrow $.
In this reaction, the catalase of yeast is not consumed, but only used as a catalytic agent to accelerate the decomposition of hydrogen peroxide. The reaction continues until the hydrogen peroxide is exhausted, and the generation of bubbles gradually slows down and finally stops. This process not only shows the wonders of chemical change, but also shows the great utility of enzymes in biochemical reactions.
is to put yeast into a container containing hydrogen peroxide, and the change is very wonderful. Hydrogen peroxide, a chemical substance, gradually decomposes into water and oxygen under normal conditions, but the rate is slow.
Yeast contains a catalyst called catalase. When this enzyme encounters hydrogen peroxide, if the key is unlocked, it will accelerate its decomposition. As soon as the yeast enters the hydrogen peroxide, the reaction starts immediately. It can be seen that the bubbles in the solution are surging, which is the appearance of oxygen escaping.
From a microscopic perspective, hydrogen peroxide molecules ($H_ {2} O_ {2} $), under the action of catalase, fission into water molecules ($H_ {2} O $) and oxygen molecules ($O_ {2} $). The chemical reaction formula can be expressed as: $2H_ {2} O_ {2}\ stackrel {catalase }{=\!=\!=} 2H_ {2} O + O_ {2}\ uparrow $.
In this reaction, the catalase of yeast is not consumed, but only used as a catalytic agent to accelerate the decomposition of hydrogen peroxide. The reaction continues until the hydrogen peroxide is exhausted, and the generation of bubbles gradually slows down and finally stops. This process not only shows the wonders of chemical change, but also shows the great utility of enzymes in biochemical reactions.
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