A. Zinc is the oxidizing agent B. Hydrochloric acid is the reducing agent C. Zinc is oxidized D. Hydrogen in hydrochloric acid is oxidized 相关知识点: 试题来源: 解析 C。解析:反应方程式为Zn + 2HCl = ZnCl₂+ H₂↑。锌的化合价从0升高到 + 2,根据氧化还原反应电子转移的本质,化合价升高的...
The mechanism of addition of the complexes to methyl acrylate is discussed in terms of a 1,4-addition involving initial protonation of oxygen. Reaction of the resulting 尾-carbomethoxyethyltin trichloride with tin or with zinc gives rise to mixtures of bis(尾-carbomethoxyethyl)tin dichloride and...
Solvent Extraction & Ion ExchangeSato, T.; Nakamura, T.; Kuwahara, M. Thermodynamic Studies on the Extraction of Zinc(II) from Hydrochloric Acid Solutions by Trioctylmethyl- ammonium Chloride in Various Diluents. Solvent Extr. Ion Exch. 1983, 1 (3), 453-464....
aluminum,zinc, 12 grams, react with sufficient hydrochloric acid to produce 5.6 liters of hydrogen (standard condition), then the alloy must contain metal A.Na B.Mg C.Al D.Zn Analysis: under the standard conditions, the amount of hydrogen ...
金属与酸反应的常用规律(The common law of the reaction between metal and acid) The common law of the reaction between metal and acid 1. the reaction of metals with acids is a redox reaction, and the amount of metal that loses electrons is equal to the amount of material that acids yield...
The inhibitory potential of an alcoholic extract derived from Canarium strictum leaves (CSL) was evaluated as a corrosion inhibitor for mild steel (MS) in 15% HCl solution. Furthermore, to enhance its inhibition effectiveness, the influence of potassium
a英格兰(England),一译“英吉利” English (England), as soon as translates “English”[translate] aZinc is stripped from the organic solution with water or dilute hydrochloric acid (Fig. 14.5). 锌从有机解答被剥离与水或稀释盐酸(。 14.5).[translate]...
7A). With extended hydrolysis time (6–24 h) with TlGA-M7, however, the pores on the starch surface gradually increased in both number and size (Fig. 7B–D). Notably, the starch granules remained intact after 24 h of hydrolysis with TlGA-M7, and the temperature used in the reaction ...
Zinc metal is placed into a solution of 3.0 M hydrochloric acid. a.Write a balanced chemical equation to describe this reaction. b.What type of reaction is this? c.What is the net ionic equation?What is the net ionic equation for the reaction of magnesium nitrate solution with silver ...
A flow injection photometric method for the sequential determination of zinc and copper in mixtures was developed based on the variation of the stability of the chromogenic complexes between the analytes and the reagent zincon with pH. At pH 5.0 only the Cu–zincon complex exists, whereas at pH...