一段蜡烛燃烧前为mg,燃烧一阵后,质量变为ng,同时生成了agCO2和bgH2O 发布时间:2017-07-02 21:17 │ 来源:www.tikuol.com 题型:填空题 问题: 一段蜡烛燃烧前为mg,燃烧一阵后,质量变为ng,同时生成了ag CO2和bgH2O,则生成物的总质量为 ______g,参加反应的氧气质量为 ______g.
题型:填空题 Mary and Mike ___________ last year. [ ]A. married B. get married C. went married D. got married 查看答案