Fe2(SO4)3 + 6NaOH → 3Na2SO4 + 2Fe(OH)3
Tìm và sửa lỗi
1) My brother wants I to help him, but I can't. =>...................
2) After examine the man was free. =>.................
3) Unless she doesn't learns hard , she will fail the examss.=>......................
4) My car is been repaired at the moment. =>....................
5) You should spend more time playing computer games.=>.....................