(2013?莆田质检)如图所示的实验装置,用于探究可燃物燃烧的条件.(1)试管A中的白磷燃烧时,气球会 某兴趣小组用下图(试管中充满空气)所示的实验来探究“可燃物燃...
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(1)白磷燃烧放出热量,使试管内的空气体积增大,所以气球胀大.故答案为:胀大.
(2)水中的红磷不能燃烧主要是因为热水的温度不能达到红磷的着火点,并且不与氧气接触.
故答案为:达不到着火点,并且不与氧气接触.
(3)白磷燃烧反应的化学方程式4P+5O2
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