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浓硫酸的吸水性和溶解时的放热现象江苏省无锡县东北塘蓉阳初中彭树鑫初中化学讲了溶解的过程，及浓硫酸的吸水性。在讲解浓硫酸的吸水性时，可增补一个小实验：用一根火柴头蘸上浓硫酸，放在空气中约１０秒钟左右，火柴头即会着火燃烧起来。这个实验，既说明了浓硫酸的吸...
Absorption of Concentrated Sulfuric Acid and Exothermicity during Dissolution Peng Shuxin Junior Middle School of Tangrongyang Junior High School in Wuxi County, Jiangsu Province spoke about the dissolution process and the water absorption of concentrated sulfuric acid. When explaining the water absorption of concentrated sulfuric acid, a small experiment can be supplemented: Concentrated sulfuric acid is put on a match head and put in the air for about 10 seconds. The match head will start to burn. This experiment shows both the absorption of concentrated sulfuric acid...