论文部分内容阅读
最近,市场上出现了一种净水装置。为了能够说明水中确实含有一些杂质,销售人员还在现场以矿泉水、纯净水以及自来水为实验对象用水电解器来做电解水的实验。只见销售人员打开开关几秒钟,水中便出现了红色的絮状物质,还有的出现绿色絮状物质。这时他们解释说,水中含有大量的有害物质,并开始推销自己的产品。但事实的真相果真如此吗?初三学习化学的时候,大家就会学到电解水的实验,电解水会产生氢气和氧气。课本中还有注释:
Recently, a water purifier has appeared on the market. In order to be able to explain the water does contain some impurities, sales staff are still on the scene with mineral water, purified water and tap water as the experimental water electrolyzer to do water electrolysis experiments. I saw the sales staff to open the switch for a few seconds, there will be a red floc in the water, there are some green flocculent material. At this moment they explained that the water contained a lot of harmful substances and started to market their products. But the truth is so true? The first three days of learning chemistry, we will learn the experiment of electrolyzed water, electrolyzed water will produce hydrogen and oxygen. There are notes in the textbook: