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氯气分子在紫外光或加热作用下,吸收能量,使共价键断裂离解成为两个活化氯原子。活化氯原子半径较小(0.99×10~(-10)米),夺取或吸引电子的能力较强,非常活泼,在常温时即能跟很多金属、非金属或某些化合物进行反应。现行中学化学教材,关于氯气化学性质的几个实验都是要求在加热“点燃”条件下进行反应。但是,实验证明,在常温下也能进行反应。现分别述于后: 1.氯气与钠的反应现行初中化学82页[实验2—10],是将钠盛在燃烧匙里加热到刚开始燃烧,就立刻连匙伸进盛满氯气的集气瓶里。这显然
Under the action of UV light or heat, chlorine molecules absorb energy and dissociate the covalent bonds into two activated chlorine atoms. Activated chlorine atoms smaller (0.99 × 10 ~ (-10) m), the ability to capture or attract electrons strong, very lively, that is, at room temperature with a lot of metal, non-metallic or some compounds react. Current high school chemistry textbooks, several experiments on the chemistry of chlorine, require the reaction to be carried out under “warm” conditions. However, experiments show that the reaction can be carried out at room temperature. Now are described in the following: 1. Chlorine and sodium reaction The current junior high school chemistry 82 [Experiment 2-10], is the sodium in the combustion spoon heated to the beginning of combustion, immediately spoon into the full set of chlorine Gas cylinder. This is obviously