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
The influence of CnTAB cationic surfactant chain length (n = 8, 10, and 12) on the reaction rate of zinc powder and 0.1 M HCl hydrochloric acid in aqueous solutions was determined at room temperature. Solutions of single surfactants consisting of dodecyl, decyl, and octyl鈥恡rimethyl銈沵...
4.55 g of zinc is reacted with 50 cm³ of 2.25 mol/dm³ dilute hydrochloric acid.The equation for the reaction is shown. (extended only)Zn + 2HCl → ZnCl₂ + H₂Which volume of hydrogen gas, at room temperature and pressure, is produced in the reaction?A 1.35 dm³...
2. Understand the Reaction: - When zinc reacts with hydrochloric acid, it produces zinc chloride (ZnCl2) and hydrogen gas (H2). - The general reaction of a metal with an acid can be represented as:Metal+Acid→Salt+Hydrogen gas3. Write the Chemical Equation:...
Answer to: Write the balanced equation for the reaction between hydrochloric acid and zinc metal. By signing up, you'll get thousands of...
The reaction between zinc and HCl is given by the symbolic equationZn + HCl → ZnCl2 + H2. Note that H2 is hydrogen gas. What happens when dilute hydrochloric acid is added to iron filling? When dilute Hydrochloric acid is added to iron filings,iron(II) chloride & hydrogen gas is produce...
Very recently, Zn powder (Zn-p) is gradually used as the anode of AZIBs benefiting from its high porosity, rich reaction sites, and large storage space for reaction products. Li et al. developed the 3D pristine graphene (PG) network by the direct liquid phase exfoliation method to realize...
This is why the stoichiometric coefficients in a chemical equation represent the moles of each substance that react and the ones that are formed, and at the same time they adjust the number of atoms of each chemical element that are on each side of the chemical equation....
First, in analogy to the definition of pH and the Henderson-Hasselbalch equation (Eq. (1)), one is the pZn value, the “free” zinc ion concentration (Eq. (2)). Second, the other is the buffering capacity, which describes how resistant the pZn value is to change. It is determined ...
Wet method. Zinc sulfate and sulfuric acid reaction to get zinc sulfate, and then reaction with sodium carbonate and ammonia respectively, the obtained zinc carbonate and zinc hydroxide were used as raw materials to produce zinc oxide.The reaction equation is as follows: ...