Phenolphthalein 和Hydronium 遇酸、碱变什么色 oxidation half reaction和reduction half reaction和conservation of mass and

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Phenolphthalein 和Hydronium 遇酸、碱变什么色 oxidation half reaction和reduction half reaction和conservation of mass and
Phenolphthalein 和Hydronium 遇酸、碱变什么色 oxidation half reaction和reduction half reaction和conservation of mass and

Phenolphthalein 和Hydronium 遇酸、碱变什么色 oxidation half reaction和reduction half reaction和conservation of mass and
第一个是酚酞（晕,明明读起来差很多嘛为什么我们要叫它酚酞喔）,无色,遇酸、中性溶液不变色,遇碱性溶液变红.
给个例句你记：
Any of various substances, such as litmus or phenolphthalein, that indicate the presence, absence, or concentration of another substance or the degree of reaction between two or more substances by means of a characteristic change, especially in color.
指示剂任何一种具有下列功能的物质,即能通过自身性质的变化,特别是颜色的变化来表明另一种物质的存在、消失或聚集,或可以表明两种以上的物质相互反应的程度；例如石蕊、酚酞
第二个hydronium应该属于医学范畴的词汇啦～水合氢（离子）,化学上倒是有个hydronium ion,也是水合氢离子.MS这个应该不会存在遇酸碱变色的问题吧?莫非偶翻译有误?
第三个么···汗,不太确定不过似乎直译叫做半氧化反应?
第四个不是差不多么···MS叫做半还原反应?LZ你说的这两个词是不是分别指一个氧化还原反应中的氧化反应部分和还原反应部分?
第五个conservation of mass and charge应该是质量和电荷守恒吧
就这样啦～虽然不是很好但是我已经尽力了,TAT···
Anyway,也可以去寄托家园或者CHASEDREAM上看看
顺便祝LZ考试顺利
飘走～

PCU/HYD的用法和样例： PCU/HYD的用法和样例： Phenolphthalein 和Hydronium 遇酸、碱变什么色 oxidation half reaction和reduction half reaction和conservation of mass and HYD-200凿岩机原理 lgbt_u-hyd什么意思 hyd' heater是什么电气设备上的 r u thr?还有Hyd.这个缩写又是? bilge holding tank H/COIL HYD 干什么的 Directions:Question 20 and 2l refer to the following experiment:Three different pairs of metal wires are placed separately in petri dishes (as shown in the diagram below) containing a mixture of gelatin,rust indicator and phenolphthalein solution.第建筑工程专业英语翻译,着急!OH- ion concentrations in the pore solution were determined by directtitration against nitric acid using phenolphthalein indicator. The pH valuesof the pore solution were calculated from the measured hydroxyl ion 一道ap化学题.50.which of the following represents acceptable laboratory practice?A.adding a weighed quantity of solid acid to a titration flask wet with distilled water.B.using 10 ml of standard strength phenolphthalein indicator solution for ti 钻井英语在线翻译（急）HYD PUMP2766-0213SET STROKEFOR 20 GPMWAT inj pumpMTD on TDof 2766-0231d DRME GRBX 不要在线翻译的,最好是人工的.谢谢. 英语翻译INFORMATION SERVICES AGREEMENTPARTY A (CONSIGNOR):PARTY B (CONSIGNEE):xxx Co.,Ltd.Party A and B both sides follow the principle of equality,voluntary,honesty and credit,on the party A entrust Party B to provide information services of hyd 谁能帮我英文名字我会非常刚谢的现在各个人都说我跟不上潮流,我也要英文名字啊,呜呜,我叫,黄奕丁男我不要Hyd这些的.我要想外国人哪些名字.如：毛主席的英文名叫:Chairman Mao：不是叫Mzx, *和^, 和和 “和”