电子课本网 第9页

第9页

信息发布者:
C
​$ \mathrm{H_2 } $​
​$ \ \text {Al}_2\ \text {O}_3+3\ \text {H}_2\ \text {SO}_4\xlongequal[\ \ \ \ \ \ ]{}$​
​$ \ \text {Al}_2(\ \text {SO}_4)_3+3\ \text {H}_2\ \text {O}$​
③ ⑤
​$ \mathrm{ Na_2CO_3} $​
​$ \ \text {Fe}_2\ \text {O}_3+3\ \text {H}_2\ \text {SO}_4\xlongequal[\ \ \ \ \ \ ]{}\ \text {Fe}_2(\ \text {SO}_4)_3+3\ \text {H}_2\ \text {O}$​
​$ \ \text {Al(OH)}_3+3\ \text {HCl}\xlongequal[\ \ \ \ \ \ ]{}$​
​$ \ \text {AlCl}_3+3\ \text {H}_2\ \text {O}$​