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细铁丝在氧气中燃烧的实验,是学习氧气化学性质时的一个重要的实验,是很有代表性的一个实验,该实验的教学让学生认识这样几个问题:(1)某些在空气中不能燃烧的物质可以在氧气中燃烧;(2)某些物质燃烧的点燃方法比较特殊;(3)有些物质燃烧时没有火焰出现;(4)由于燃烧放出热量大,生成物是高温的物质会下落到瓶底,所以实验前需要在瓶底放一些水或细沙,防止瓶底炸裂。该实验一般是需要把铁丝绕成螺旋状,并在下端系一根火柴,
The experiment of burning fine iron wire in oxygen is an important experiment when studying the chemistry of oxygen. It is a very representative experiment. The experiment teaching students to recognize such problems as: (1) some in the air Non-combustible materials can be burnt in oxygen; (2) Some materials burn with a rather special ignition method; (3) Some materials have no flame when burned; (4) As a result of combustion, Fall to the bottom of the bottle, so before the experiment need to put some water or sand at the bottom to prevent the bottom of the bottle burst. The experiment is generally required to wire into a spiral, and at the bottom of a match,