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氢氧化铝和硫酸的反应是2Al(0H)3+3H2SO4=AL2(SO4)3+6H20为什么离子式变成了AL(OH)3+3H+ =AL(3+) +3H2O
rt ***详细一点最新问答：
H2SO4是强酸,Al2(SO4)3是盐,都属强电解质,要拆成离子
得
2Al(0H)3 + 6H+ + 3SO42- →(可逆)2Al3+ + 3SO42- +6H2O
方程式两边相同的约去,系数化成最简
得 AL(OH)3 + 3H+ →(可逆)Al3+ + 3H2O
根据所给的词将下列改为一般现在时,
We have a big map pf China in our room.(Mr.Green)
___________________________________________
They watch TV in the evening.(he)
___________________________________________
Do the students play football after school?(Tom)
___________________________________________
Do you have any flowers in your room?(she)
___________________________________________
I do not do my homework at school.(she)
___________________________________________
You often help me with my English.(Joan)
___________________________________________最新问答：
1 Mr.Green has a big map of China in his room.
2 He watches TV in the evening
3 Do Tom plays football after school?
4 Does she have any flowers in her room?
5 she does not do her homework at school.
6 Joan often helps me with my English.