题目 【题目】Writethechemicalformulaoffollowingsubstances:a Sulphuricacidb.Sodiumhydroxidec.Potassiumnitrated.Ferricoxide 答案 【解析】 (共8分)H2SO4;NaOH;KNO3;Fe2O3(各2 分)相关推荐 1【题目】Writethechemicalformulaoffollowingsubstances:a Sulphuricacidb.Sodiumhydroxidec.Potassiumnitrated.Ferricoxide 反馈...
青云英语翻译 请在下面的文本框内输入文字,然后点击开始翻译按钮进行翻译,如果您看不到结果,请重新翻译!sulphuric acid or sodium hydroxide solutions选择语言:从 到 翻译结果1翻译结果2 翻译结果3翻译结果4翻译结果5 翻译结果1复制译文编辑译文朗读译文返回顶部 正在翻译,请等待... 翻译结果2复制译文编辑译文朗读...
Sulphuric acid films were diluted very quickly in unstirred rinse water, and also in solutions of sodium sulphate with concentrations up to saturation. In contrast sodium hydroxide films were diluted much more slowly, and in unstirred rinse water they clung persistently to the metal surface. ...
4Al(s)+302(g)2Al2O3(s) Hydrochloric acid and sodium carbonate 2HCl(aq)+Na2CO3(aq)H2O(l)+ CO2(g)+2NaCl(aq) 2H+(aq)+ CO32-(aq)H2O(l)+ CO2(g) Iron(III) chloride and sodium hydroxide FeCl3(s)+3NaOH(aq)3NaCl(aq) +Fe(OH)3(s) Fe3+(s)+3OH-(aq)Fe(...
The plant has been sized to produce 10,000 Mt per year of sodium hydroxide (100% basis) from an aqueous sulfate feed. The total capital equipment for the plant includes the cell stacks, power supply, tanks, plumbing, etc., to convert a clean sulfate solution to its aqueous acid/base ...
To 10 ml of solution S add 0.1 ml of phenolphthalein solution. Not more than 0.2 ml of 0.1M hydrochloric acid or 0.1 M sodium hydroxide is required to change the colour of the indicator. Readily carbonizable substances To 0.20 g of the powdered substance to be examined add 10 ml of su...
A. Hikmat, "Potentiostatic studies of the corrosion of grey cast iron in sulphuric acid and sodium hydroxide solutions," Corrosion Science, vol. 27, no. 3, pp. 221-228, 1987.Al-Shamma L A, Saleh J M and Hikat N A (1987), Potentiostatic studies of the corrosion of grey cast iron ...
A. Dilute 1 ml of solution S1 (see Tests) to 25 ml with water R. To 0.1 ml of the solution add 1 ml of sulphanilic acid solution. Allow to stand for 2-3 min. Add 1 ml of b-naphthol solution and 1 ml of dilute sodium hydroxide solution R. An intense red colour develops. ...
KLAUS ROLF LUDWIGDE4025895A1 * 1990年8月16日 1992年2月20日 Rolf Ludwig 7750 Konstanz De Klaus Regenerating spent ammonium thiosulphate fixing baths - by decomposing with sodium hydroxide and sulphuric acid and recombining to form ammonium sulphite soln....
The feeding value of low quality forages may often be improved with some additives such as urea and sodium hydroxide (Schingoethe et al., 1980). The aim of the present study was to evaluate the in vitro gas production parameters of sesame stover treated with NaOH, urea or sulphuric acid....