| T O P I C R E V I E W |
| taituhollywood |
Posted - 03/17/2003 : 20:06:26
FeO + H2SO4 L =?
Feo + ? = Fe2O3
Fe + Fe2o3 =?
? + HNO3 d,n =?
vay thoi nha . lam duoc se co thuong do .....
taitu
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| 8 L A T E S T R E P L I E S (Newest First) |
| thuyk47 |
Posted - 04/17/2003 : 16:30:50
email minh ne tinhmaixa851984
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| lukhachtinhyeu |
Posted - 04/12/2003 : 17:28:47
cac ban co ban nao gioi hoa huu co khong minh chi hoc duoc vo co thoi cun huu co thi khong biey lam ban nao giup minh voi nhe cam on
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| taituhollywood |
Posted - 04/11/2003 : 19:09:12
ban tra loi hay ghe , ko nhu cac ban kia chi gioi noi khoat chuc mung ban , ban dia chi mail la gi vay ? minh gui wa toi cho vay nha . cam on ban da giai giup bai toan
taitu
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| thuyk47 |
Posted - 04/09/2003 : 09:00:32
tra loi Feo+H2SO4l=FeSO4+H2O Fe+Fe2O3=3FeO Fe+HNO3dn=Fe(NO3)3+NO+H2O HOAC Fe+HNO3=Fe(NO3)3+NO2+H2O ban tu can bang phuong trinh nhe
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| taituhollywood |
Posted - 03/28/2003 : 20:23:40
hehehe tra loi chua duoc ma da lam phach roi ,hay ko tra loi duoc nen noi vay cho oai phai ko ? hwhhehheheheh. Neu gioi vay thi giai di ...Dung noi xuong .
taitu
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| shang |
Posted - 03/23/2003 : 19:59:06
ban dem bai` nay` ve` nha` tu lam` lay' di
THIEU GIA HO NGUYEN TEN HAI
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| bichlinhabcd |
Posted - 03/21/2003 : 19:51:22
co bai gi hay hay hon khong the ,
er
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| tuan_anh20012003 |
Posted - 03/21/2003 : 09:14:36
hello
ban dang dua hay sao ma lai gui bai nhu vay?
ban hay gui bai nao do hay mot chut nhe. cho bai cua ban
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