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近年来,三口烧瓶(又称三颈烧瓶、三口瓶、三颈瓶)在高考化学试题中频繁出现,尤其是浙江省2011年、2012年、2014年连续三次涉及该仪器;江苏省2011年、2014年两次涉及该仪器,仅2014年就有四套高考题涉及该仪器。三口烧瓶通常具有圆肚细颈的外观。它有三个口,可以同时加入多种反应物,或是加冷凝管,并可配合橡皮塞来连接其他的玻璃器材。根据其外观的不同可分平底烧瓶和圆底烧瓶两种。通常平底烧瓶用于在室温下的反应,而圆底烧瓶则
In recent years, the three-necked flask (also known as three-necked flask, three-necked flask, three-necked flask) frequently appeared in the college entrance examination chemistry test, especially Zhejiang Province involved in three consecutive times in 2011, 2012 and 2014. In 2011, The instrument was involved twice in 2014 and in 2014 there were four sets of entrance examinations related to the instrument. Three-necked flask usually has a round neck appearance. It has three ports, you can add multiple reactants at the same time, or add a condenser, and with the rubber plug to connect to other glass equipment. According to their appearance can be divided into flat-bottomed flask and round-bottomed flask two. Flat-bottomed flasks are typically used for reaction at room temperature, while round-bottomed flasks are then