其他 返回
天气预报 > 其他 > 什么是奇偶数配平法
什么是奇偶数配平法
更新时间： 2020-09-17 00:00:00  

1、先观察等号两端的化学式中有没有同一元素的原子个数出现了奇数与偶数。2、选择出现最大奇数的化学式,在该化学式前面加系数。3、最后观察配平。

关键词： 什么 偶数

什么是奇偶数配平法相关经验

天气预报

最新推荐

页面:/news/view-212364/ | 耗时:0.1410 s | 内存:2.11 MB | 查询:4 | 缓存读取:3 写入:0 | 加载文件:25
select * from tbl_Articles WHERE ArticleID=212364 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=212364 LIMIT 0,1
select * from tbl_Articles_sphinx where id=212364 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1119331,1062392,1067769,980827,987401,1096388,1116461,1052151,1079437,1062716,1118495,1103384,1053786,1073407,1091645,1111574,1096993,1094393,1048354,988780,1082303,1105261,1071259,1095576,1062346,1073437,1075817,1050037,1086608,1071501) ORDER BY field (ArticleID,1119331,1062392,1067769,980827,987401,1096388,1116461,1052151,1079437,1062716,1118495,1103384,1053786,1073407,1091645,1111574,1096993,1094393,1048354,988780,1082303,1105261,1071259,1095576,1062346,1073437,1075817,1050037,1086608,1071501)