Shanxian Chemical
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Hydrogen Peroxide Yeast Experiment
Peroxide and Yeast Experiment
Today, I want to explore the reaction between hydrogen peroxide and yeast. Prepare hydrogen peroxide solution, yeast, clean container and stirring utensils.
First pour an appropriate amount of hydrogen peroxide into the container, and the liquid is clear like water. Then take a little yeast and slowly sprinkle it into the hydrogen peroxide solution. In an instant, a wonderful phenomenon suddenly occurs. A large number of bubbles suddenly appear in the solution, like a spring, and it seems that gas is eager to escape.
Why is this reaction so violent? The reason is that yeast contains catalase, which has catalytic ability and can quickly decompose hydrogen peroxide into water and oxygen. The chemical reaction formula is: $2H_ {2} O_ {2}\ stackrel {catalase }{=\!=\! =} 2H_ {2} O + O_ {2}\ uparrow $.
Looking at this experiment, the generation of bubbles is evidence of oxygen escape. And during the reaction, the wall of the container is slightly hot, which shows that this reaction is an exothermic reaction.
Through this experiment, we can gain insight into the wonder of chemical reactions and the key role of biological enzymes in catalytic reactions, which is to increase our understanding of the relationship between chemical and biological phenomena.
Today, I want to explore the reaction between hydrogen peroxide and yeast. Prepare hydrogen peroxide solution, yeast, clean container and stirring utensils.
First pour an appropriate amount of hydrogen peroxide into the container, and the liquid is clear like water. Then take a little yeast and slowly sprinkle it into the hydrogen peroxide solution. In an instant, a wonderful phenomenon suddenly occurs. A large number of bubbles suddenly appear in the solution, like a spring, and it seems that gas is eager to escape.
Why is this reaction so violent? The reason is that yeast contains catalase, which has catalytic ability and can quickly decompose hydrogen peroxide into water and oxygen. The chemical reaction formula is: $2H_ {2} O_ {2}\ stackrel {catalase }{=\!=\! =} 2H_ {2} O + O_ {2}\ uparrow $.
Looking at this experiment, the generation of bubbles is evidence of oxygen escape. And during the reaction, the wall of the container is slightly hot, which shows that this reaction is an exothermic reaction.
Through this experiment, we can gain insight into the wonder of chemical reactions and the key role of biological enzymes in catalytic reactions, which is to increase our understanding of the relationship between chemical and biological phenomena.
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