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nj friend
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 Posted - 25/12/2002 : 11:07:31  
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satIIdisunfua(FeS2)+axit sunfuric d,n(H2SO4 d,n)
sat sunfua(FeS)+H2SO4(d,n)
Cu2S+HNO3
ra san pham gi ?
neu cach can bang cu the tung bai?
co the gui email cho minh : nam10_2_1985@hcm.vnn.vn |
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rey_sailor
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Posted - 07/01/2003 : 18:24:56
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chao!
cho minh tham gia voi.minh k biet cau tra loi cho ban nhung ban co the giai dap cho minh k?
axit fomic + h2->
pu trem co k vay.neu co no ra chat gi?
rat vui duoc lam quen voi ban! |
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datacnhang
2 Posts
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Posted - 09/01/2003 : 10:46:52
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minh nghi la ax focmic ko tac dung voi h2
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rey_sailor
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Posted - 12/01/2003 : 09:02:45
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tai sao k!
minh nghi axit fomic cung co chuc andehit thi cung co the tac dung duoc voi h2 vay.
hay giai thich cho minh nhe!
than! |
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datacnhang1
Vietnam
14 Posts
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Posted - 13/01/2003 : 09:51:14
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ax focmic la mot ax no:HCOOH
No ko phai la ax ko no nen no ko the cong H2
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rey_sailor
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Posted - 16/01/2003 : 19:58:08
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chao!
the tai sao HCHO lai co the tac dung voi h2?
chang phai vi no co nhom andehit u?
tra loi giup minh voi.
cam on!
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datacnhang1
Vietnam
14 Posts
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Posted - 17/01/2003 : 08:13:39
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HCHO la 1 Andehit
No co nhom CHO nen co the cong H2
Con HCOOH la 1 ax , ax ko cong H2
DE NGHI BAN XEM LAI KI PHAN ANDEHIT VA AX HUU CO
Chuc vui ve
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datacnhang1
Vietnam
14 Posts
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Posted - 17/01/2003 : 08:48:51
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BAI HOA CUA BAN NJ_FRIEND RAT KHO VIET TREN DIEN DAN
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ami1986
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Posted - 18/01/2003 : 12:57:06
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| axit fomic co the cong h2 duoc khi co xuc tac kim loai Ni , Pt , ... , luc do tao thanh ancol bac mot HCHO + H2 ->CH3OH |
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hakashe_ashuka
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Posted - 18/01/2003 : 20:09:06
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hey, chao moi nguoi!
tui cung muon tham gia tra loi.
bai of ban nj friend tui biet day. tui se mail cho ban sau nhe! ok?
nhung tui e la bi gio ban da co cau tra loi rui nhi? |
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datacnhang1
Vietnam
14 Posts
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Posted - 19/01/2003 : 10:59:26
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Minh ko dong quan diem voi ban AMI1986
Co the minh sai nhung do la y kien cua minh
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linh3010
1 Posts
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Posted - 19/01/2003 : 13:52:48
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FeS2+H2SO4(d,n) -> Fe2(SO4)3 + SO2 +H20(can bang oxi hoa khu)
Cho tui tham gia voi
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hakashe_ashuka
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Posted - 21/01/2003 : 10:01:11
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fes2+h2so4(d,n) ko ra san pham nhu vay dau
ba linh3310 nham rui |
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hakashe_ashuka
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Posted - 21/01/2003 : 20:32:20
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theo tui thi san pham phai la sat 3+so2+h2s
ko biet co -hpai vay ko nhi
thoi, de tui ve xem lai phan li thuyet da vay |
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ami1986
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Posted - 23/01/2003 : 08:44:46
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datacnhang1 sai ru`iiiiiiiiiii , ko tin ah ? U thu xem sach Tai Lieu Giao Khoa Chuyen Hoa Hoc 11 tap 1 xem , tui ho.c tuui biet ma !
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rey_sailor
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Posted - 23/01/2003 : 20:46:13
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um!
minh dong y voi ban ami!
minh cung nghi axit fomic td duoc voi h2 nen da lam the nhung bai thi cua minh lai bi tru diem. minh uc lam |
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Topic |
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bai hoa nay minh lam chua ra