醋酸与金属铝的反应
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/02 19:37:51
CH3COOH+NaOH=CH3COONa+H2O
NaOH+CH3COOH=CH3COONa+H2O2NaHCO3(加热)=Na2CO3+H2O+CO2NaOH+HCl=NaCl+H2O
化学方程式:CH3COOH+NH3=CH3COONH4;离子方程式:CH3COOH+NH3=NH4++CH3COO-.
Mg+2CH3COOH=Mg(2+)+2CH3COO(-)+H2↑再问:跟化学方程式一样的吗再答:不一样,后面有离子出现了
2CH3COOH+Na----2CH3COONa+H2
CH3COOH+KOH=CH3COOK+H2O
CH3COOH+Na2CO3=CH3COONa+CO2↑+H2O
和盐酸反应快,因为盐酸的酸性比醋酸强
CaO+CH3COOH=Ca2(CH3COO)+H2O
醋酸与碱反应:CH3COOH+OH-=CH3COO-+H2O醋酸与弱酸盐反应:2CH3COOH+CO32-=2CH3COO-+H2O+CO2醋酸与活泼金属单质反应:Fe+2CH3COOH=Fe(CH3
CH3COOH(浓)+NaCl(饱和)=加热=HCl(气体)+CH3COONa然后收集气体,通入氧气(密闭)中灼烧,除去乙酸,然后将剩余气体溶于水中.再根据CO2和H2O两者溶解度的不同,进行除杂.最
CaCO3+2CH3COOH==Ca2+2CH3COO-+H2O+CO2(向上箭头)
NaHCO3+CH3COOH=NaCH3COO+H2O+CO2醋酸中H是+1价
Mg+2CH3COOH→Mg(CH3COOH)2+H2↑
Zn+2CH3COOH=(CH3COO)2Zn+H2
Mg+2CH3COOH=(CH3COO)2Mg+H2(气标)再问:气标?是什么啊?再答:就是↑,气体的标志……再问:还是没懂。。。再答:Mg+2CH3COOH=(CH3COO)2Mg+H2↑我有罪,我
Al+6CH3COOH==3H2+2(CH3COO)3Al
2CH3COOH+CaCO3=Ca(CH3COO)2+H2O+CO2
氢离子浓度醋酸是弱酸,在水中不能完全电离,也就是说虽然它们物质量浓度相等,但醋酸的氢离子浓度小于盐酸的,所以盐酸刚开始反应的快.
2Al+6CH3COOH=2Al(CH3COO)3+3H2