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 ...
Reaction Information Disclaimer Word Equation Dichromium Trioxide + Hydrogen Chloride + Zinc = Chromous Chloride + Zinc Chloride + Water One mole of Dichromium Trioxide [Cr2O3], six moles of Hydrogen Chloride [HCl] and one mole of Zinc [Zn] react to form two moles of...
This investigation intends to explore the effects that the concentration of reactants has on the rateof a reaction between zinc and hydrochloric acid. Solid zinc will be placed in varyingconcentrations of hydrochloric acid solution, and the rate of disappearance of the acid will bemonitored and ...
To calculate the limiting reagent, enter an equation of a chemical reaction and press the Start button. The reactants and products, along with their coefficients will appear above. Enter any known value for each reactant. The limiting reagent will be highlighted in red....
. Displacement Reaction:In this example of a single-displacement reaction, the lone element (zinc) displaces the on of the ions on a salt (hydrogen cation) to form a new salt and an independent element of that displaced ion.Answer and Explanation: ...
Gas-sensitivity was investigated of n- and p-types conductivity semiconductor sensors based on zinc, indium and chrome oxides with the respect to hydrogen chloride (0.06 – 3 ppm). Disclosed were two mechanisms of interaction between НС1 and above metal oxides. It is demonstrated that HCl ...
When 45.0 mL of 2.73 M HCl reacts with zinc metal, what volume of H2 gas (in liters) forms at STP? An aqueous solution of HCl contains 36% HCl by mass. What is the molarlity? How to calculate molarity of HCl from titration
ZnO-NPs/CPE showed three main elements (carbon, oxygen, and zinc), and Fe2O3-NPs/CPE showed also three main elements (carbon, oxygen, and iron). The EDX spectrum reveals the C peak as the highest peak, reflecting the greater concentration of carbon present in the electrode and a weak ...
Homework Statement im given an experiment on reactivity series and required to write net ionic equation in the results.. I am kinda stuck in this reaction.. between this 3 metal.. iron, copper, and zinc.. reacting with nitric acid.. Homework Equations the reaction was carried out with......
What volume of hydrogen at s.t.p is produced when 2.5 g of zinc react with an excess of hydrochloric acid? Zn + 2HCl \rightarrow ZnCl_2 + H_2 How many liters of hydrogen at STP can be produced by the reaction of 4.15 g of zinc with hydroc...