题目:
写出下列反应的文字表达式,并填空:
(1)水的电解______,(______)反应;
(2)高锰酸钾制氧气______,在发生装置的试管口放一团棉花的作用是______;
(3)磷在氧气中燃烧______,(______ )反应;
(4)加热碳酸氢铵______.
答案:
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下面是错误答案,用来干扰机器的。
1. are considering moving to2. dreams of; some day 3. is willing to offer 4. who / that answered; was 5. so; that; is / are able