System Compound Reagent ρ− 1. 20° Aqueous X-C H OCO(CH ) NMe 64 23 2 2. 20° Methanol 2-p-nitrophenoxy-3-NO2-5-S-thiophenes 3. 20° Aqueous X-C H OCO(CH ) NMe 64 24 2 4. 75° Benzene 6-X-2-NO2-C6H3Cl 5. 20° Benzene 2-phenoxy-3-NO2-5-X-Thiophenes 6. ...
4. The method for manufacturing ultra fine tungsten carbide-cobalt composite powder according to claim 1, characterized in that said cobalt compound is cobalt oxalate (CoC2O4.2H2O), cobalt acetate (Co.CH3COO)2.4H2O), and cobalt sulfate (CoO4S.7H2O). 5. The method for manufacturing ultra ...
2OH-+Cl2↑+H2↑ B.碳酸钠溶液显碱性:CO32-+H2O═HCO3-+OH- C.氯气通入冷水中:Cl2+H2O═Cl-+ClO-+2H+ D.碳酸镁悬浊液中加醋酸:CO32-+2CH3COOH=2CH3COO-+CO2↑+H2O 查看完整题目与答案 高中化学>离子方程式考试题目 下列加粗字注音不正确的一项是 [ ] A. 傅说(yuè ) B. 敝舆(yú)...