一次兴趣小组的同学做鸡蛋跳舞的趣味实验。查阅资料如下:在一装有稀盐酸溶液的大烧杯中放一个新鲜鸡蛋,它会马上沉底。不一会,鸡蛋又上升到液面,接着又沉入杯底;这样反复多次,像是在跳舞。这是由于蛋壳的主要成分是碳酸钙,遇到稀盐酸时会产生二氧化碳气体,其所形成的气泡紧紧地附在蛋壳上,产生的浮力使鸡蛋上升;当鸡蛋升到液面时气泡所受的压力减小,一部分气泡破裂,二氧化碳向空气中扩散而使 A fun group of students to do the fun experiment egg dance. Read the information below: Put a fresh egg in a large beaker of dilute hydrochloric acid and it sinks immediately. Within a short while, the egg rose again to the level of the liquid, then sink into the bottom of the cup; repeated several times, like dancing. This is because the main component of the egg shell is calcium carbonate, in case of dilute hydrochloric acid produces carbon dioxide gas, the bubbles formed by tightly attached to the eggshell, the resulting buoyancy so that the eggs rise; when the eggs rose to the surface The pressure on the bubble is reduced, some of the bubble is broken, and the carbon dioxide diffuses into the air.