(1)DAP树脂单体的分子式为 。(2)B中所含官能团的名称是 ,B→C的反应类型 。(3)E的相对分子质量为162, 1H核磁共振有3个信号。写出E的结构简式 。(4)请写出反应②的化学方程式 。(5)D有多种同分异构体,请写出符合下列条件的同分异构体的结构简式 。A.能与NaOH溶液反应B.苯环上只有两个相同的取代基,...
Cl2有氧化性 B Cu与浓硫酸加热 溴水褪色 SO2有漂白性 C Na2CO3与醋酸溶液 苯酚钠溶液变浑浊 酸性:碳酸>苯酚 D 电石与饱和食盐水 酸性高锰酸钾溶液褪色 乙炔有还原性 (15分) 某校兴趣小组对SO2与新制Cu(OH)2悬浊液的反应进行探究,实验如下: 装置 序号 试管中的药品 现象 持续通入 实验Ⅰ 1.5 mL 1 molL...
CuS + HClO4 = Cl2CuO8 + H2S Recently Balanced EquationsBalance Using the Algebraic Method Step 1: Label Each Compound With a Variable Label each compound (reactant or product) in the equation with a variable to represent the unknown coefficients. a CuCO3 ...
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(Yoo and Kim, 2012): NH4OH → NH3 + H2O (2) NH3 + H2O → NH4− + OH (3) 1 Cu + 2NH3 ⋅ H2O + 2NH4Cl + 2 O2 → Cu NH3 4 Cl2 + 3H2O (4) Many variables influence copper leaching or retrieval such as ammonium chloride's concentration, leaching temperature, and S/L ...
Acid-cleaned Al2O3 was dipped in catalytic activator solution containing 0.03 mmol of PdCl2 and 0.246 mmol of SnCl2 in 40 mL of concentrated HCl (14 min). After activation, the substrate was introduced to a reduction bath made of 4.74 mmol of (C4H10BN) and 4.52 mmol of (H3BO3) in a...
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The lead retention observed in the experiments without PEI, however, may arise from lead precipitated as PbCl2. As shown in Figure 2a–d, Cd(II) was also retained to a small extent. This may be due to the formation of stable negatively charged Cd(II) chloro complexes binding to ...
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