50分有追加求化学方程式 离子方程式
来源:学生作业帮 编辑:大师作文网作业帮 分类:化学作业 时间:2024/11/13 13:49:52
50分有追加求化学方程式 离子方程式
(1)钠与水,钠与氧气,碳酸钠与澄清石灰水,碳酸氢钠受热分解
(2)铝,氧化铝,氢氧化铝分别与氢氧化钠,硫酸反应
(3)氯气与氢气,水反应;氯气通入溴化钠、碘化钾;溴水滴入碘化钾
(4)乙烯使溴水退色;乙醇催化氧化;乙酸与乙醇酯化
(1)钠与水,钠与氧气,碳酸钠与澄清石灰水,碳酸氢钠受热分解
(2)铝,氧化铝,氢氧化铝分别与氢氧化钠,硫酸反应
(3)氯气与氢气,水反应;氯气通入溴化钠、碘化钾;溴水滴入碘化钾
(4)乙烯使溴水退色;乙醇催化氧化;乙酸与乙醇酯化
1.2Na + 2H2O = 2NaOH + H2 .2Na + 2H2O = 2Na+ + OH- + H2
4Na + O2 = 2Na2O
2Na + O2 = Na2O2
Na2CO3 + Ca(OH)2 = CaCO3 + 2NaOH; Ca2+ + CO32- = CaCO3
2NaHCO3 = Na2CO3 + H2O + CO2
2.2Al + 2NaOH + 2H2O = 2NaAlO2 + 3H2.
2Al + 2OH- + 2H2O = 2AlO2- + 3H2.
Al2O3 + 2NaOH = 2NaAlO2 + H2O.
Al2O3 + 2OH- = 2AlO2- + H2O.
Al(OH)3 + NaOH = NaAlO2 + 2H2O.
Al(OH)3 + OH- = AlO2- + 2H2O.
2Al + 3H2SO4 = Al2(SO4)3 + 3H2.
2Al + 6H+ = 2Al3+ + 3H2.
Al2O3 + 3H2SO4 = Al2(SO4)3 + 3H2O.
Al2O3 + 6H+ = 2Al3+ + 3H2O.
2Al(OH)3 + 3H2SO4 = Al2(SO4)3 + 6H2O.
H+ + OH- = H2O.
3.Cl2 + H2 = 2HCl.
Cl2 + H2O = HCl + HClO.
Cl2 + H2O = H+ + Cl- + HClO
Cl2 + 2NaBr = Br2 + 2NaBr.
Cl2 + 2Br- = Br2 + 2Cl-.
Cl2 + 2KI = I2 + 2KCl.
Cl2 + 2I- = I2 + 2Cl-.
Br2 + 2KI = I2 + 2KBr.
Br2 + 2I- = I2 + 2Br-.
4.CH2=CH2 + Br2 --- CH2Br-CH2Br
2CH3CH2OH + O2 ---2CH3CHO + 2H2O
CH3COOH + CH3CH2OH --- CH3COOCH2CH3 + H2O
4Na + O2 = 2Na2O
2Na + O2 = Na2O2
Na2CO3 + Ca(OH)2 = CaCO3 + 2NaOH; Ca2+ + CO32- = CaCO3
2NaHCO3 = Na2CO3 + H2O + CO2
2.2Al + 2NaOH + 2H2O = 2NaAlO2 + 3H2.
2Al + 2OH- + 2H2O = 2AlO2- + 3H2.
Al2O3 + 2NaOH = 2NaAlO2 + H2O.
Al2O3 + 2OH- = 2AlO2- + H2O.
Al(OH)3 + NaOH = NaAlO2 + 2H2O.
Al(OH)3 + OH- = AlO2- + 2H2O.
2Al + 3H2SO4 = Al2(SO4)3 + 3H2.
2Al + 6H+ = 2Al3+ + 3H2.
Al2O3 + 3H2SO4 = Al2(SO4)3 + 3H2O.
Al2O3 + 6H+ = 2Al3+ + 3H2O.
2Al(OH)3 + 3H2SO4 = Al2(SO4)3 + 6H2O.
H+ + OH- = H2O.
3.Cl2 + H2 = 2HCl.
Cl2 + H2O = HCl + HClO.
Cl2 + H2O = H+ + Cl- + HClO
Cl2 + 2NaBr = Br2 + 2NaBr.
Cl2 + 2Br- = Br2 + 2Cl-.
Cl2 + 2KI = I2 + 2KCl.
Cl2 + 2I- = I2 + 2Cl-.
Br2 + 2KI = I2 + 2KBr.
Br2 + 2I- = I2 + 2Br-.
4.CH2=CH2 + Br2 --- CH2Br-CH2Br
2CH3CH2OH + O2 ---2CH3CHO + 2H2O
CH3COOH + CH3CH2OH --- CH3COOCH2CH3 + H2O