AI金属化学性质
一、AI金属化学性质
AI是什么
是Al吗
铝是活泼金属,在干燥空气中铝的表面立即形成厚约50埃(1埃=0.1纳米)的致密氧化膜,使铝不会进一步氧化并能耐水;但铝的粉末与空气混合则极易燃烧;熔融的铝能与水猛烈相应的金属;铝是两性的,极易溶于强碱,也能溶于稀酸。
与酸反应
2Al +6HCl ==== 2AlCl₃+ 3H₂↑
2Al + 3H₂SO₄(稀)==== Al₂(SO₄)₃+ 3H₂↑
Al + 6HNO₃(浓)==Δ==Al(NO₃)₃+ 3NO₂↑+ 3H₂O
Al + 4HNO₃(稀)==== Al(NO₃)₃+ NO↑+ 2H₂O
8Al + 30HNO₃(较稀)====8Al(NO₃)₃+ 3N₂O↑+ 15H₂O
8Al + 30HNO₃(极稀)====8Al(NO₃)₃+ 3NH₄NO₃+ 9H₂O
6CH₃COOH+2Al=2Al(CH₃COO)₃+3H₂↑
与碱反应
2Al+2NaOH+6H2O=2NaAl(OH)4+3H2↑
与非金属反应
4Al+3O₂====2Al₂O₃(点燃)
2Al+3Cl₂====2AlCl₃ (点燃)
2Al+3S====Al₂S₃ (加热)
铝热反应
2Al + Fe₂O₃==点燃== Al₂O₃+2Fe(铝热反应)
8Al + 3Fe₃O4==高温== 4Al₂O₃+9Fe
与水反应
根据铝的还原性可推断铝可以与水反应,但实验发现,铝与沸水几乎没有反应现象,不过铝在加热条件下就可以与水蒸汽发生明显反应,但反应一开始就与水中的氧气生成致密氧化膜阻止反应进一步进行。
摘自百度百科
二、AI的元素名称是什么
是铝元素。
三、氢氧化钠和什么金属反应生成气体??求解。
AI,即铝金属元素,铝金属是唯一能可碱性溶液(氢氧化钠)反应产生氢气。而且铝金属还能和酸性溶液反应产生氢气,它是两性金属,酸性溶液和碱性溶液都反应。
四、铝的元素符号是C1还是CI?
Al 表示铝元素;
Cl 表示氯元素;
C 表示碳元素;
是AL,但L不能大写,要小写“l”
五、AI是什么化学元素
应该是Al (不是I,是小写的L)
元素符号: Al英文名: Aluminum 中文名: 铝
六、用英文介绍下化学元素 AI 就是铝
Silver white light metal. Has the ductility and malleability. Products are made of rod-like, sheet, foil, powder, ribbon and filamentous. In the humid air can form a layer of oxide film to prevent metal corrosion. Aluminum and aluminum foil in air heated to burn fiercely, and emits a blinding white flame. Easy to dissolve in the dilute sulfuric acid, nitric acid, hydrochloric acid, sodium hydroxide and potassium hydroxide solution, do not dissolve in water. The relative density of 2.70. The melting point of 660 DEG c.. The boiling point of 2327 DEG c.. Aluminum content in the crust comes next only to oxygen and silicon, and ranks the third in the earth's crust, is the most abundant metal element. Aviation, construction, automotive three major industrial development, requirements of material characteristics of aluminum and its alloy unique properties, which greatly facilitates the new metal aluminum production and application. The application is very extensive.In 1854, the French chemist Deweier bauxite, charcoal, salt to the mix, the chlorine gas and heated to NaCl, AlCl? And then the compound salt and salt, sodium melting, obtained by metal aluminum.