p u o \ ( ; ( ; t i o D U cv A D A o T A o ' r ' r r A N rpri r o vrNrr DIi -fIII DE KfIAO sAr cnAr LU'oNClrroc srNr{c;lol - 2ot3 xAruHec zo12 M d n t h i : S i n h h g I i r p8 Tlrdi gian larn bni: t 20 phfit CIIiItIT TTITTC Ciiu I (3 ctiern ) I-lny nOucac tl-ranl-r phAn cAu tao r0 bao ? Qu" giAi tirich moi qLranhg thongnhit vd chu'cndnggiframangsinl-rchdt, chAtt0 bao varnhan? Ciu (3diem) N€, vai tro cria h0 ti€u h6a, hg ho hep va h6 bai ti6t sLrtrao cloi chat giira co thOvoi rndi tn-rcrng ? Ciu3(3.5diern) 'frong I rr-r6tnon su bi6n d6i thric dn di6n theo nhimg hinh thuc nao? Su kh6c co bin cua qu6 trinh tiOuhoa cyrudt non, da day va khoang rni6ngla gi'? (li u -l (-l cli0rn) t ,i thf nghi:- minh : I'rong phAn hoa hoc cua xuong co cei ff 9hu'ng chiit hiru co va chAtv6 co? Tai ngucrigia gion va dE gd)''l Ciu (-l5 dicrn) Clo ngucri An, Binh, Cuong, prau khac nheiu.t.i-1, Pung thr-roccdc nhom tltatt cr-raAn hodc Cucrng chuy6n cho Binh thi khong xAy tai bien Li; rtrauc-uaCluong chuy6n cho An hodc lAy m6u cua Dfrng r'nuyOncho Cu'o',-rg thi xaiyra tai bi0n '['inr nhirrnrni u cua m6i nguoi Ciu (i di0rl) I Srinphirn ti€t ciratr-ryOnnoi ti€t l a g i ? N e u vai tro cua no '/ i ^ l S o s i n h t u y nn o i t l e t v a iLlyen n go?l tr0t'/ JJEt