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一道基本的分析化学的题!在ph=10的氨性溶液中,已计算出α[Zn(NH3)]=10^4.7,α[Zn（OH）]=10^2.4α[Y(H)]=10^0.5,则在此条件下lgK‘(ZnY）为多少?（lgK(ZnY)=16.5）A.8.9 B.11.8 C.14.3 D.11.3 there is no need for...to造句 it isnot enough to造句there is no need for...to造句 it isnot enough to造句 the earlier.the better造句 1molNa离子、NH3、OH离子、F离子分别含有多少NA电子,需要计算过程 用there is no need for sth造句 NO3-+OH-+H2O+Zn→NH3+[Zn(OH)4]2- 怎么配平?NO3-+OH-+H2O+Zn→NH3+[Zn(OH)4]2- 用下面的短语造句 1.there is no need for ...to 2.do n用下面的短语造句 1.there is no need for ...to 2.do not mind 3.spend time on 4.in order to 5.it is not enough to 6.the earlier ...the better 谁能帮忙起个男子英文名有彩虹或者紫光的含义~ apple mango的《i love you i want you i need you 》中文音译歌词 和中文意思歌词 thank you~如题~ ______ you _______ a tape? No, thank you. A. Are, need B. Do, need C. Would, need D. Does, need选B还是选C啊?急求,谢谢! -____________orange do you need?-thank you.I don't need anyAhow many Bhow much Chow about Dwhich "A person who buries his head in the sand offers an engaging target."I need translation~thank you~ 怎样处理PPR水管裂缝埋在墙里的PPR水管,不小心被工人錾了一个裂缝,现在又不能换水管,怎样处理能够保证不漏水? 起个霸气个性英文名偶准备出国,拜托大家起一个英文名,首先是男的名,自创为优,霸气个性点更好,懂得来 能不能起一个很霸气的英文名,要女生的,特别一点的我是摩羯座的 圆钢镀铬是什么 金德ppr水管质量问题人于07年11月2日购买了贵公司的管材.在08年2月准备搬新房装修过程中,上午发现了卫生间有漏水现象,下午有服务人员到现场进行处理,.挖开卫生间查看,发现是管材上有沙 point,the,clother,you,to,can,needs,he(?)连词成句 ( )he( )look at a map A.Does;need B.Need;to C.Does;need to D.Needs;to 欧洲分为哪几部分,有哪些国家,及其首都亚洲有哪几部分,每部分有哪些国家,它们的首都是哪里?谢谢 欧州包括哪些国家 铝可以镀铬吗铝件镀铬和阳极氧化哪种光洁度更高、反射效果更好阿,两种方式的价格哪个高, 请问"你的鞋子需要修理"应该是Your shoes need repaired.还是Your shoes need to be repaired?有何规则? 铁可以镀铬吗? 连词成句①at,very,we,hats,a,good,have,price, ②you,need,shoes,pair,a,do,of,③for,we,sell,20,shorts,dollars④eight,socks,only,are,for,$5,pair⑤great,and,buy,at,food,our,sale,come还有汉语意思… you do to your homework need(.)连词成句 shoes,your,put,under,bed,your怎么连词成句 Your shoes don't match you skirt.(改为同义句） Your shoes cdon't_____ _____ with your shirt. PPR水管接头漏有什么办法 PPR水管接头漏能用沾石材的石胶堵吗?就是装修时沾卫生间台板的那种石胶, 镀铬镜面辊在使用过程中与什么物质接触会出现镀层剥离现象,与三价铬钝化液长时间接触会缠身玻璃吗? 镀铬需要什么材料 镀铬哪里学