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已知金属铝的熔点比金属镁高,则镁铝合金的熔点( )



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һþϽѧʽΪMg17Al12,д,...
һþϽѧʽΪMg17Al12,д,úϽһȫ...AϽ۵þ۵֮ BúϽþԪسʸ,Ԫس...
...ټ:3.4 ;㷺 ...
йþϽʵ,ȷ( A.Ͻ۵þ۵...MgO ۵Ӧõڵ MgCl2 ķȡ;ǻý,...
ڶµڶ仯
й˵ȷ( ) A.þϽ۵þ۵֮ ... 2й Al(OH)3 ͼ - 4.֪,Al(OH)3 ...
2017߿ѧһָϰ:()ר3.3+þ...
Ͻ۵þ۵ 3. ϳһ 2016 ¿ַƱ: () ֪õϡ NaOH ҺΪ 3mol/L. ͼ...
ҵϽ2
(2)˽ͭϽϽڹҵ͸߿Ƽ...[ѧ] [̾]þϽ þ:þ,...Ͻڴص: (1)Ͻ۵ĸ...
(ȫͨ)2016߿ѧһָϰ Ч10 ˽̰
йþϽʵ,ȷ( A.Ͻ۵þ۵...MgO ۵Ӧõڵ MgCl2 ķȡ;ǻý,...
...:ʱҵ() 3.4;㷺 ...
˵ȷ ( A.Ͻ۵þ۵֮ B.úϽ...(5: Fe(OH)3 Fe(OH)2 Cu(OH)2 ʼʱ pH 1.9 7....
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˵ȷ A.Ͻ۵þ۵֮ B.úϽþԪسʸ,Ԫس C.1mol Mg17Al12 ȫõĻ Y ...
...߿ѧרͬѵ:;㷺...
NH4CuSO3 10 2+ A.Ͻ۵þ۵֮ B....(5: Fe(OH)3 Fe(OH)2 Cu(OH)2 ʼʱ pH 1.9 7....
ʡаǿѧ2014()ڶ¿ѧ...
Ͻ۵þ۵֮ B. úϽ...Ļϼ۽,,ǿڸ ...Ϻģ XYZW Ϊѧѧг...
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