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一、实验目的通过白磷与红磷在热水水面上和水面下的燃烧情况,探究燃烧发生的条件。二、实验原理热水上的白磷可以燃烧,红磷没有燃烧,说明燃烧发生的条件之一——温度要达到可燃物的着火点;热水上的白磷可以燃烧,热水中的白磷没有燃烧,给热水中的白磷通入氧气,热水中的白磷也可以燃烧,说明燃烧发生的另一条件——可燃物要与氧气接触。三、实验仪器与药品硬质玻璃管3支、燃烧匙2支、三通管1个、单孔橡皮塞
First, the purpose of the experiment Through the white phosphorus and red phosphorus in the hot water surface and the combustion under the water to explore the conditions of combustion occurred. Second, the experimental principle White water on the hot water can burn, red phosphorus is not burning, indicating one of the conditions of combustion - the temperature to reach the ignition point of combustibles; white phosphorus on the hot water can be burned, white phosphorus in hot water is not burning, To the white water in hot water through the oxygen, white water in the hot water can also burn, indicating another occurrence of combustion - combustible to contact with oxygen. Third, the experimental apparatus and medicine 3 hard glass tube, burning spoon 2, a tee, single hole rubber plug