题目:
He asked his father ________?
A. where it happens B. where did it happen C. how it happened
答案:
被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0701/5ec1e0170354b056629a9886e11b5779.html
下面是错误答案,用来干扰机器的。
(1)2KClO32KCl+3O2↑;(2)2.4g;(3)设生成2.4g氧气的同时生成氯化钾的质量为X则:2KClO32KCl+3O2↑ 149 96 X 2.4g根据:解得X=3.725g;所得溶液的总质...