[move]chao ban hoa that ra khong kho dau ban chi can nam vung cong thuc va ghi that nhieu cong thuc ve hoc hoc dan dan ban se gioi thoi .Ban hay thuong xuong lam bai tap se giup ban nho tot ve hoa[/move]
ban thu ngoi va viet lai he thong kien thuc mon hoa da hoc theo phan huu co va vo co . tu do ban se biet minh con hong cho nao . thoi gian khong con nhieu ban nhanh chong lap nhung lo hong neu co . dung danh qua nhieu thoi gian vao ngien LY THUYET lam bai tap la cach de ban cung co ly thuyet mot cach vung vang cung nhu ren luyen ki nang lam bai, tinh toan . ban cung nen chu y mot so van de vi du nhu cho Na vao mot dung dich muoi bao no cung tan dung voi nuoc truoc .(ban se sai khi cho Na tac dung truc tiep voi moui ) hay bai tap ve Muoi cacbonat bao gio cung cho hai ngiem.
hoa co kho khong
Posted - 18/03/2003 : 15:36:41 
