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,化合价升高的锌失去电子被氧化。反馈 收藏 ...
When heated, the hydrated form of zinc chloride loses water and minor quantities of ZnCl(OH) are obtained. The chemical equation for this reaction is given by: ZnCl2.2H2O → ZnCl(OH) + H2O + HCl Toxicity Toxicity Zinc chloride is corrosive by ingestion and highly irritant by inhalation. Fea...
Also, the compound may be prepared by the reaction of sodium bicarbonate with a soluble zinc salt: ZnCl2 + NaHCO3 → ZnCO3 + NaCl + HCl Chemical Properties White, crystalline powder. Evolves carbon dioxide at 300C. Soluble in acids, alkalies, and ammonium salt solutions; insoluble in water...
was characterized by monitoring chemical shift changes in the proteins induced by histone peptides (synthesized by SynPeptide). Dissociation constant (Kd) was determined by applying PCA to the1H,15N HSQC titration spectra in TREND30. Each binding isotherm was fitted using the following equation: ...
conductivity meter (Hanna Instrument, HI 8033, Inc., Woonsocket, RI, USA). Then, the discs were incubated at ambient temperature for 24 h31. To obtain the second EC2, the discs were put in an autoclave at 120 °C for 15 min and cooled to 25 °C. The following equation estimated EL...
EQUATION FOR PERMEATION VELOCITYBiopolymer gel particles of alginic acid were found to be a useful material for recovering zinc, cadmium, and lanthanum from aqueous solutions. The metals sorbed by the gel particles could be completely eluted by using dilute HCl solution of 0.1 kmol/m3. The ...
Zinc-nickel is an alloy plating (usually proprietary and available from the major plating process suppliers) that offers better corrosion resistance than plain zinc plating. The chromating process is somewhat different because the conversion reaction proceeds somewhat differently on the alloy. The proprie...
29 Due to good reversibility and high redox potential of Fe2+/Fe3+ redox reaction, the Fe2+/Fe3+ has been used as a catholyte in various RFBs including Zn–Fe, Fe–Mn, Fe–S, etc.31 Zn–Fe RFB also investigated largely due to its high practical energy density at low cost. These...
(II) ions solution using either 0.01 M NaOH or 0.01 M HCl solutions. The solutions were then shaken using a Grant OLS Aqua Pro temperature-controlled shaker (Model OLS26, UK) at a rate of 150 rpm. The samples were filtered through a 0.22-micron PTFE membrane syringe filter before being ...
where Ȓ = R / aB* (R is radius of nanoparticle, aB* is the exciton Bohr radius in bulk material; The information of the other quantities in this equation could be found in Additional file 1: Eqs. S2.1–2.7 [21]. ZIF-8 showed the lowest λmax (236 nm) and highest bandgap...