在理科实验中具有相同现象的事例很多,但导致产生这种现象的原因可能并不相同。现以化学实验为例,对这一类知识进行以下归纳,以便使该类知识系统化,使我们能够更好地运用这些知识解决实际问题1 褪色褪色是化学实验中的一种常见现象,如品红溶液的褪色、有色布条的褪色、酚酞的褪色等。能够导致有色物质褪色的物质种类很多,但褪色原理却不尽相同。 There are many examples of similar phenomena in science experiments, but the reasons for this may not be the same. Now taking chemical experiments as an example, this type of knowledge is summarized as follows in order to systematize this type of knowledge so that we can better use this knowledge to solve practical problems. 1 Fading and fading are common phenomena in chemical experiments, such as Fading of magenta solution, fading of colored fabrics, fading of phenolphthalein, etc. There are many types of substances that can cause discoloration of colored substances, but the principle of discoloration is not the same.