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 unbalanced equation for the reaction between zinc and hydrochloric acid is: Zn+HCl→ZnCl2+H2 4.Balance the Chemical Equation: - To balance the equation, we need to ensure that the number of atoms of each element is the same on both sides. ...
Zinc metal reacts with hydrochloric acid according to the balanced equation: Zn(s) + 2 HCl(aq)¡ZnCl2(aq) + H2( g) When 0.103 g of Zn(s) is combined with enough HCl to make 50.0 mL of solution in a coffee-cup calorimeter, all of the zinc reacts...
A. combination reaction B. decomposition reaction C. displacement reaction D. double displacement reaction 相关知识点: 试题来源: 解析 C。锌和盐酸反应生成氯化锌和氢气,这是置换反应的例子。置换反应是一种单质与一种化合物反应生成另一种单质和另一种化合物的反应。反馈...
A. combination reaction B. decomposition reaction C. displacement reaction D. double displacement reaction 相关知识点: 试题来源: 解析 C。锌和盐酸反应生成氯化锌和氢气,是一种置换反应,一种单质置换出另一种单质。选项 A 是化合反应,错误。选项 B 是分解反应,不对。选项 D 是复分解反应,不符合该反应类...
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...
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...
Write the balanced chemical equation for the reaction of zinc metal and hydrochloric acid to produce hydrogen gas and zinc chloride. (a) Write the full molecular equation for the reaction of aqueous zinc nitrate with aqueous potassium hydrox...
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: ...
aadded during 20 minutes to concentrated hydrochloric acid (80 ml.) and water (20 ml.) containingamalgamated zinc (80 g.), and the reaction completed by heating the mixture under reflux for 10 minutes.The hot liquid was then decanted, the residual amalgam was washed with hot methanol (100...