9512.net
Ŀ
ǰλãҳ >> >>

已知金属铝的熔点比金属镁高,则镁铝合金的熔点(  )



£
һþϽѧʽΪMg17Al12,д,...
һþϽѧʽΪMg17Al12,д,úϽһȫ...AϽ۵þ۵֮ BúϽþԪسʸ,Ԫس...
...3.4 ;㷺 ʱ...
ڵȻõ 7.֪ Cu ... ϲģ)һþϽѧʽΪ Mg17Al...Ͻ۵þ۵֮ B.úϽ...
...߿ѧרͬѵ:;㷺...
NH4CuSO3 10 2+ A.Ͻ۵þ۵֮ B....(5: Fe(OH)3 Fe(OH)2 Cu(OH)2 ʼʱ pH 1.9 7....
þϽԱ
ȻþϽϵϽ,,ϸ߳...(g/cm3 1.82 ۵ () 596 ϵ (W/Mk...þϽ۵Ͻ۵,ѹܺáþϽ...
ʡǿѧ2014ѧڵڶ¿ѧ Wo...
һþϽѧʽΪ Mg17Al12,д,úϽһ... ˵ȷ A.Ͻ۵þ۵֮ B.úϽþ...
...:ʱҵ() 3.4;㷺 ...
˵ȷ ( A.Ͻ۵þ۵֮ B.úϽ...(5: Fe(OH)3 Fe(OH)2 Cu(OH)2 ʼʱ pH 1.9 7....
(ȫͨ)2016߿ѧһָϰ Ч10 ˽̰
йþϽʵ,ȷ( A.Ͻ۵þ۵...MgO ۵Ӧõڵ MgCl2 ķȡ;ǻ,...
2017߿ѧһָϰ:()ר3.3+þ...
Ͻ۵þ۵ 3. ϳһ 2016 ¿ַƱ: () ֪õϡ NaOH ҺΪ 3mol/L. ͼ...
ڸûӦΪ...
֪:AlFe۵㡢е: (1)ijͬѧ²,ȷӦõϽ.:÷Ӧʹۻ,۵,γɺ...
ڶµڶ仯
й˵ȷ( ) A.þϽ۵þ۵֮ ... 2й Al(OH)3 ͼ - 4.֪,Al(OH)3 ...
رǩ
þϽ۵    þϽ۵    ۵    þ۵    þ⾧ʯ۵    þϽ    þϽ۸    þϽܶ    

All rights reserved Powered by Ŀ 9512.net

copyright ©right 2010-2021
Ŀ磬ַϵͷzhit325@126.com|վͼ