Conversation Between bluemonster and gaunho_gl
Showing Visitor Messages 1 to 2 of 2
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y quen mat.a co the gui thu qua [email]besun_gl@yahoo.com[/email] cho e.cam on a!
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chao anh!
e moi tham gia dd thay a la nguoi co nhiu bai nhat nen hoi.A giup e voi nha
FeCl3 co pu voi KBr ko ha a?
Ah,khi e lam thi nghiem cho chi axetat vao natri sunfua sao lai co ket tua trang.Theo e biet thi pu ra chi sunfua pai co mau den chu?
A tra loi nhanh gium e nghen.Cam on a nhiu!
