I
Reputation(danh tiếng)
Well-qualified( có kinh nghiệm nhiều)
II
If you don't study, you will fail in the examination.
She asked me what music i liked best.
The weather was cold so they had...
4 I wish they could go hiking...
5. She said she was doing her homwork then.
2Fe+6H2SO4(₫)->Fe2(SO4)3+3SO2+6H20
x.............................0,5x
mFe2(SO4)3=400.0,075=30g. Vậy Fe2(SO4)3 dư
Fe+Fe2(SO4)3->3FeSO4
.y......y..................3y
Gọi x ,ylà số mol Fe pứ và dư
Có x+y=0,15
400(0,5x-y)+3y=26,4