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吸水劑是對有水產生的可逆反應而說的而做脫水劑也生成了水但不是可逆反應
類比濃硫酸的溶于水,將濃硫酸逐滴加入濃硝酸中,邊加邊攪拌,這裡給你拓展一下,如果說反應物是兩種以下,那麼濃硫酸的作用是催化劑,脫水劑,如果說反應物是兩種或兩種以上,濃硫酸的作用是吸水劑,催化劑.
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