9hu'ng minh : I'rong thanh phAn hoa hoc cua xuong co cei chiit hiru co va chAt v6 co?. t.i-1, tltatt cr-ra An hodc Cucrng chuy6n cho Binh thi khong xAy ra tai bien Li; rtrau c-ua Cluong
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Tlrdi gian larn bni: t 20 phfit
Cii u I (3 ctiern )
I-lny nOu cac tl-ranl-r phAn cAu tao r0 bao
thong nhit vd chu'c ndng gifra mang sinl-r
? .Qu" do giAi tirich moi qLran hg chdt, chAt t0 bao var nhan?
ti6t trong sLr trao cloi chat
C i u 2 ( 3 d i e m )
N€, vai tro cria h0 ti€u h6a, hg ho hep va h6 bai
giira co thO voi rndi tn-rcrng ?
C i u 3 ( 3 5 d i e r n )
I 'frong rr-r6t non su bi6n d6i thric dn di6n
2 Su kh6c nhau co bin cua qu6 trinh tiOu
rni6ng la gi'?
ra theo nhimg hinh thuc nao?
hoa cy rudt non, da day va khoang
(li u -l (-l cli0rn)
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ff ,i thf nghi:- 9hu'ng minh : I'rong thanh phAn hoa hoc cua xuong co cei chiit hiru co va chAt v6 co?
2 Tai sao ngucri gia gion va dE gd)''l
C i u 5 ( - l 5 d i c r n )
Clo 4 ngucri An, Binh, Cuong, Pung thr-roc cdc nhom prau khac nheiu t.i-1, tltatt cr-ra An hodc Cucrng chuy6n cho Binh thi khong xAy ra tai bien Li; rtrau c-ua Cluong chuy6n cho An hodc lAy m6u cua Dfrng r'nuyOn cho Cu'o',-rg thi xaiy ra tai bi0n
'['inr
nhirrn rni u cua m6i nguoi
C i u 6 ( i d i 0 r l )
I Srin phirn ti€t cira
l S o s i n h t u y 0 n n o i
l a g i ? N e u
i ^
go?l tr0t'/
tr-ryOn
t l e t v a
noi ti€t
iLlyen n
vai tro cua no '/
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