đề thi thử đại học cưc hay

  !"#$%&'()$*+ +$,- +.&/012345678$9:678";<6785=> 78$?@A?B<C<9?8D<<?E6?F!8G9 !<9?H67<IJ<$  2 )(K L 2 )(K M )(3 N   OP ?Q<R;89S9H6"T<UV<?W67<IJ<"#8UXY6?@67<IJ<6?8RZ<[E6?9?\@6?#89?8D< UX +.9]<HAF8^9_BY<?W9"T_BY<`<"Ta. b.9?VY6?^9cd69H6_9]<HAF8^9_BY<?W9"T. .9]<<?W9"T_9]<HAF8^9_9]<<e<"Ta. f.BYHAF8^9_HY<?W9"T_BY<e<"Ta 78$T9U@gK?h9?!<6?C!"`<9? 2 _/_ 2 ."S96?HR5_5iUh94[K96=??K?h<XR I]<Uj</k:!"l `[m<FB<A?mY 6?HRkX@<n6ke9 @<4[=9?^R9H6? !K;99l!_[[okX6p_qrUK?h4"K96=9?@H9 !. N?SUj<"o9?!R"sF@knK?SUj<[[<n6ke9 @<I!<"t8UX$ +.9]<r!Yb.BY5.q!Y.9]<q.uq!Yf.BYi.rq!Y 78a$.T9?v<?jAo`Y   kX  .;<?X<?A?B<C<9s<?jA a  9:?v<?jAo9?w9?8 "j6 ?v< ?jA . b;9 K?S Uj< 9 8<Iw<?6l!okXUt<Uj9UXu_kXu_ir.h<??W8 F8^99s<?jA a . +.r_rxb.u_a,x.i_r,x f.x 785. v< ?jA o `Y  6?^9 ?Q8 6y K;9;A <?!8 9 @< 6z< [{R "`< "|<_ A?7< 9}6l! 6?d<6?~6pYT9<?pY6?C6.?!oUXYA?t<IJ<<?!8$  ?t< $ "\Y "S9 6?HR ?@X< 9@X< ` 6?@9@X< IT FB< A?mY 6?HR 46?~ 6p /   kX   /= Ut< Uj9 •8! Iw<? 4= "€< [8< [E6?   3/ 5  "•6_Iw<?4="€<[8<[E6?!4/=   [_9?^R K?SUj<Iw<?4=9]<_r!YkXIw<?4=6pu!YK;99l!. ?t<$6?@9H6[‚<?;9kn![9?w9?Z9h6?K?h   4"K96=9?8"j6UXI!@<?V8. +._5Uh9b._qrUh9._5Uh9 f._Uh9  7 8 q $ ƒ!  9!<  ?@X<  9@X<    !Y  ?v<  ?jA  +  `Y  _  „\  / a  IJ<  [8<  [E6?   3/ 5  U@{< [  9?^R9?@H9  !  %  Uh9     4"K96=  kX  9?8  "j6  [8<  [E6?  b.  ?VY  9:  9:  !/  ";<  [  kX@  [8< [E6?  b.  N;9  9?d6  9?h<?WY_  U…6  U^R  K;9  9l!  "\Y  <8<  9 @<  K?e<  K?h  ";<  K?S  Uj<  K?e<  "s 9?8  "j6  i  !Y  6?^9  †<.  %  6p  H  9 E  UX$ +.  _5  Uh9  b.  r_i  Uh9  .  _  Uh9 f.  q_r  Uh9 78r$ T9?v<?jAo`Y„\kX‡<_K?9H6[‚<kn[8<[E6?!/[6?@ !r_uUh9K?h4"K96= kX"ZUgYT96?^9 †<+.ƒ!9!<?;9+9 @<[8<[E6?  3/ 5 U@{<_F!8"p9?VY[8<[E6?!/ 1 ["j6K;99l!b.8<b<@XK?e<K?h";<K?SUj<K?e<"s"j66?^9 †<<•<q_r.N?S Uj<6l!?v<?jAo$ +.ar_5ib.au_5.a_ar f.a5_q 78u$[{R6H6A?7<9}kX@<YXYvA?7<9}kX@<"pk:!6p9h<?@c?@!_kX6p9h<?K?}UX$ +.3/ 2 _ / 3 _„\ + 3 _/ 2 _b 2 b..3/ 2 _ + 3 _„\ + 2 _/ 2 _b 2  .3/ 2 _+ + _ + 3 _ 3 _3.f..3/ 2 _„\ + 2 _/ 2 +_3 78i$6?@Y!Y??8kX„\ 2 / 3 kX@[[ 2 3/ 4 U@{<4[=_K?8^R"#86?@6H6A?B<C< cBR !?@X<9@X<9?^R6pa_!YKYU@!K?e<9!<kX[[o.6?@ 3 49n[=kX@[[o_U…6U^RK;9 9l!_<8<9 @<K?e<K?h";<K?SUj<K?e<"s6ƒ<Ugr!Y6?^9 †<.H9 E6l!YUX$46?@ ˆ_/ˆr_„\ˆqr_8ˆr5= +.ab.,..aq.f.q.r 78,$ 8<  ?v<  ?jA  +  `Y   ! / a  k X  !3 / a  9 n   A? B <  C<  ?@ X <  9 @ X <  "j 6  6 ? ^9  † <  b  6 p K?S   U j<I J <  q_5x  K?S   U j<  6 l !  ?v<  ?jA  +.  ? ^9  † <  +  6 p  x  K?S   U j<  ? !  6 ? ^9  Ut <  U j 9 UX$ +.  5x  k X  rx  b.  ax  k X  ux .  qx  k X  uqx  f.  x  k X  ix 78$ T<U‰<a[8<[E6?  3/ 5 __/ a _kXU_akn<?Q<9?Z9h6?IJ<<?!8 9?8"j6[8<[E6?+.^RaYU[8<[E6?+6?@A?B<C<kn%Uh9[8<[E6?b`Y!/ _kXN/_,9?8"j6[8<[E6?6pAˆ.H9 E%UX +._a5Uh9.b._5Uh9.._55Uh9. f._55Uh9. 78$ T<qYU[8<[E6?6?C!?v<?jAU_ikX  3/ 5 _knqYU[8<[E6? !/!9?8"j6qYU[8<[E6?6pAˆ.H9 E +._a.b._.._5. f... 78$ŠF9\6l!Uc\ @Ukn!c96!6I@cRU64//="j6YT9FS?…6F<?k;9<?F!8$4= 4//= a  a  q >  4=  4//=   a  q 4/=>  4a=  4/=   a  q //>  45=  4//=   a  q 4/=>  4q=  a  q 4//= a .e<9?C6"{k;9"d<UX +.6?~6p4=.b.6?~6p4q=..4=_4q=_45=. f.4=_4=_4a= 78a$?@!Y@UKYU@gkX@[8<[E6??v<?jA6?C!IY@U83/ 5 kX6Y@U„\3/ 5 .N;9 9?d6A?B<C<[8<[E6?9?8"j66?C!Y8S.oH6"E<?"#8KW<A?z?jA6?@K;9•8B9 V<.              +. !   ≥  I                         b. I   ≤  !  P  I  L6 .I ≤ ! ≤ IL6.f.IP!P_q4IL6=. 785$?s9:9:%Uh9?v<?jAK?h4"K96=`Y/kX  "•8!YT9S<"€<r_i!Y?v<?jA a@c9$8/_„\ a / 5 _+U  / a <8<<p<_A?B<C<?@X<9@X<.3!8A?B<C<9?8"j6Y!Y6?^9 †< kXYT9?v<?jAK?hkX?y<•<?y<K?SUj<6l!?v<?jA%UX_a!Y.h<?%kXY. +._5Uh9kX5_5i!Y.b._55iUh9kXi_5r!Y. 2 ._Uh9kX_i!Y.f._55iUh9kXr_5i!Y. 78q$.?@a_r!Y!<"\?9"y<6?C6oA?B<C<?@X<9@X<knYT9Uj<[+/ a  9 @< [8<[E6?  a  "8<<p<_ 9?8"j6 Y!Y+.@X9!< ?@X<9@X<Y!Y + IJ<[8< [E6? / a  "•6_F<? !_5Uh9/   4FB<A?mYK?}[8R<?^9_G"K96=.e<9?C66l!oUX$ +.  a  u / .b./..    q / f.  5  , / 78r$ /c ?p! 6?DY Y !Y „\ <@X K?e< K?h 9?8 "j6  !Y ?v< ?jA + `Y „\/_ „\ a / 5 _„\  / a kX„\[.ƒ!9!<+k:!"lIGYU[8<[E6?/ a  9?8"j6_5Uh9/[8R <?^94"K96=.h<?YkX<`<"TY@U‹U6l![8<[E6?/ a +.u_uq!YkXb.u_uq!YkXa_ ._i!YkXf._i!YkXa_ 78u$T9 ?v< ?jA `Y ?! !<"\?9 o kX  K; 9;A <?!8 9 @< [{R "`< "|< 6l! !<"\?9 <@_ "y<6?C6_ Yg6? ?G 4K?H6 /=. ?@ _ !Y ?v< ?jA 9 V< A?B< C< kn [8< [E6? +/ a ‹ a  [9?8"j65_a!Y+KYU@g4?W8F8^9x=.e<9?C66^89g@6l!okX Ut<Uj9UX$ +./_ a /b. a /_   q / .   q /_ a  u /f. a  u /_ 5  , / 78i$+_bUX?!!<6@U<@_"y<6?C6_K;9;A<?!89 @<[{R"`<"|<.?@?v<?jA`Y _r!Y+ kX_a!Yb9H6[‚<?;9kn!9?8"j6_Uh9  4"K96=.+_b6p6e<9?C6A?7<9}Ut<Uj9 UX$ +. a /kX   q / b.   q /kX a  u / . a  u /kX 5  , / f. 5  , /kX q   / 78,$?Q<A?H9IZ8F!8"7R$4=?^9IŒ@K?e<9!<9 @<<n6>4=?^9IŒ@K?e<9!< 9 @<<n6_<?•?y<<n6<?<9!<<?#89 @<[8<Ye?Q86y>4a=ft8]<kXYŽIe9 y<6p 6z<9?X<?A?t<<8RV<9S>45=?^9IŒ@UX\F9\6l!Uc\ @UkX!c9?Q86y.H6A?H9IZ8"d<UX +.4=_4=_4a=_b.4=_4=.4=_4=_45=. f.4=_4a=_45=. 78$" @?@H?@X<9@X<Y!Y?v<?jAo`Y?!!<"\?9<@_"y<6?C6_Yg6??G_K;9;A <?!89 @<[{R"`<"|<9?8"j64YL=!Y?v<?jA?!!<6@U.•9K?H6_K?"S96?HR?@X< 9@X<6•<Y!Yo9?w6t<k:!"lu_,Uh9K?h/  4G"K96=.H9 E6l!YUX +._qb.u_i..i_i. f.5_i. 78$ƒ!9!<q_,5!Y?v<?jAY8S6U@ 8!6l!KYU@g+_b4"#86p?@H9 E=kX@<n6 "j6[8<[E6?o.ZUXYK;99l!?;9@<U • 6p9 @<[8<[E6?o<9!6?@[8<[E6?o9H6 [‚<kn[8<[E6?+/ a 9?8"j6u_!YK;99l!.…6I‘K;99l!_9?8"j6[8<[E6?.e 6g<"j6Y!Y?v<?jAY8SK?!<.H9 EYUX +.r_ar!Y. b.r_q!Y. .,_!Y. f._a!Y. 78$ 8<?@Xq_5i!Y?v<?jA`Y!c9!c\96_A?\<@UkX!c9I\<’@6_6t<[z<rYU [8<[E6?!/_.e6g<[8<[E6?F!8A?B<C<_9?8"j6?v<?jA6?^9 †<K?!<6pK?S Uj<UX +.i_r5!Y. b.r_i5!Y. .5_,!Y. f.r_i!Y 3 78a$?@_Y@U\F9\+kX@q!Y[8<[E6?!/x"8<<p<";<K?\F9\A?B<C< ?@X<9@X<4H66?^9I!R?yK?e<"H<KZ=[8<[E6?9?8"j66pK?SUj<qi_r!Y.?< K?e[8<[E6?9?8"j6_5!Y6?^9 †<K?!<.e<9?C66l!+ +.//  ˆ  .  b.   q // a .  .  ˆ// a .  f. a //ˆ  .  785$N?e<9?Z"#86?;!c\9e<IJ<A?y<A?HA$ +@c?@!!<6@UF@A @ARU6IJ<8/_"S9<p< b.@c?@!68Y\<IJ<8/6pcd69H6kX_"S9<p< .@c?@!!<6@UA @ARU6IJ<8/_"S9<p< f.F‚6K?hA @A<kX@[[6?C!"S<9?3/5kX3/5U@!<4"8<<p<= 78q$e“<?y ” AK?• – oe — Y  k! —   6@ – 9• ˜ K?e – F@ky – \I] — <_i.8<<@ – <oYe ” 99?y — !< 9 @<I• — <?K• – <46@ – Ie ” 9„\U! — Yc8 – 69! – 6=_9?8"y ” 6?e“<?y ” AK?• – 6@ – 9• ˜ K?e – F@ky – \I] — <.V ” 8 F87 – 968 ˜ !A?! ˜ < – <9e ˜ <?y ” A a U! — +.qxb.arx.5x.f.qx. 78r$ƒ!9!<?;955_i!Y„\ c / R IJ<[8<[E6?/ a U@{<_9?8"j6[8<[E6?+.?@ [8<[E6?!/[kX@[8<[E6?+.N;99l!9?8"j6"\Y<8<G<?W9"T6!@6?@";<K?S Uj<K?e<"s.fz<  "ZK?}?;9Uj<@c99g@9?X<?F!8K?<8<9?w9?8"j6a_,!Y 6?^9 †<.„\ c / R UX$ +.„\/.b.„\  / a ..„\ a / 5 . f.N?e<cH6"E<?"j6. 78u$?@?v<?jAo`Y!<K\<kX?" @6p9~K?SF@kn?\UIJ<a_aa.?@o"•8!IT9 <K\<<8<<p<";<K?A?B<C<cBR !?@X<9@X<_9?8"j6?v<?jA6p9~K?SF@kn?\UUX5. 6l!oUX +.   5 .b. a  r . 5  i . f. q   . 78i$v<?jAK?ho`Y  kXYT9!<K\<6pK?B<]<6T<b 6?@FB<A?mY?Q86y[8R <?^9.~K?S6l!oF@kn  IJ<,_.8<<p<o6pcd69H6_F!8K?A?B<C<cBR !?@X< 9@X<_9?8"j6?v<?jAK?hK?e<UXYY^9YX8<n6I @Y>9~K?S6l!F@kn   IJ<a. e<9?C66^89g@6l!!<K\<UX +. a ˆ a .b.  ˆ   a . .  ˆ4 a =  .f.  ˆ  . 78,$v<?jAo`Y?" @kXYT9?" @6!6I@<.8<<p<5_qrUh9?v<?jAo4"K96=_6p cd69H6";<K?A?B<C<?@X<9@X<9?8"j6?v<?jA6pK?SUj<_i!Y.b;99~K?S6l! F@knY\9!<UX_ukX6pK?B<]<UXYY^9YX8[8<[E6?I @Y.e<9?C6A?7<9}6l! ?" @6!6I@<UX +. a  r .b. 5  r .. a  5 . f. 5  i . 78a$8<<@ – <?e“<?y ” AK?• – oe — Y_Y@U    k! — _aY@U  9 @<Ye ” 9I• — <?K• – <4c8 – 69! – 6 =_9?8"y ” 6?e“<?y ” AK?• – .?@Ue ” 9 — 9 — k! — @I• — <?<y – 6I @Y4[=_F!8K?KV – 99?8 – 66! – 6A?! ˜ <  – <_K?e – Uy ” <I• — <?9]<Y!Yk! — 6@ – iYU?e“<?y ” AK?• – ‡4"K96=9?@! – 9 !.• ˜ K?e – 68 ˜ !‡F@ky –    U! — _i.! – 9  ” 68 ˜ !YU! — +._aib._q._qiq. f._r. 4 78a$8<<p<?v<?jAK?h`Y_rY@U    kX_5Y@U  kncd69H6_F!8YT99? !<9?8"j6?v<?jAK?h.f‰<9@X<IT?v<?jAUT9:9:•8!Iw<?"€<[8<[E6?I @Y4[= 9?w6ƒ<Ug_55iUh9?v<?jAK?h‡4"K96=6p9~K?SF@kn/  UX_q.N?SUj<Iw<?[8<[E6? I @Y9]<UX +._5!Y. b._a!Y. ._r5!Y. f._!Y. 78a$?@5_,r!Y`Y!  k! — !9! – 6[8 ” <?V – 9ky – <y – 6"y ” 6_5U• – 94"K96=?e“<?y ” AK?• – o. f7“<o•8!Ie ” 9<8<<@ – <Ye ” 99?y — !<"y ” 6?e“<?y ” A.?@•8!I• — <?" ” <I @Y[9?7 – R 9?@! – 9 !_i,rU• – 94"K96=?e“<?y ” A‡.?@9~K?S6l!‡F@kn?" @UX5_q.e ” 9]<K?e – Uy ” <I• — <? <y – 6I @YU! — +._5!Y.b._i!Y.._!Y. f._ir!Y. 78aa$v<?jAK?ho`Y_aY@U  kX_Y@Uk<RU!c\9U\<.8<oYT99?!<kncd69H6 9?8"j6?v<?jAK?h6p9~K?SF@knK?e<K?hUX.;86?@9@X<ITF‚69:9:kX@[8< [E6?I @Y4[=9?w6pY!YI @Y9?!Y!A?B<C<.H9 E6l!YUX +.a_.b.i_..a_.  f.r_. 78a5$N?@c?p!?@X<9@X<_!YYT9!<"\?9"y<6?C69?8"j6a!Y!c99y< C<.e<9?C66l!!<"\?9UX +./. b.   a /. .   q /. f. a /. 78aq$?@?v<?jAK?ho`Y/kX  "•8!S<FC"€<IT9<8<<p<.3!8K?A?B< C<cBR !?@X<9@X<_9?8"j6?v<?jA`Y?!6?^9?Q86y.S96?HR?;99?w9?8"j6_u !Y  /kXu_i5Uh9K?h/  4G"K96=.?t<9 ]Y9?\@9?Z9h6?6l!  9 @<oUX$ +.rq_x. b.5r_qx. .aq_x. f.qa_iqx. 78ar$v<?jA+`Y!c9<@"y<6?C6kXYT9!c9K?e<<@"y<6?C66pYT9UV<K;9"eG S6?" @6!6I@<.N?6?@!!Y+9H6[‚<?;9kn!/ a 9?@H9 !_Uh9/  4"K96=.v<?jAb `Y a /kX   q /K?6?@u_i!Yb9H6[‚<?;9!9?@H9 !_5Uh9  4"K96=.;89 T<! !Y+kna_,!Yb `"8<<p<6p  3/ 5 "•6cd69H69?w9?8"j6Y!Y\F9\4?W8F8^9?x=. H9 EY9?\@!_?UX +.4!L_=?x.b.4!Lu_i=?x. .4!La_,=?x.f.4!Lr=?x. 78au$?@_ar!Y?v<?jA`Y„\_„\/_„\  / a kX„\ a / 5 A?B<C<?;9kn[8<[E6?/ a U@{<4[=_9?8"j6_a55Uh9K?h/4FB<A?mYK?}[8R<?^9_G"K96=kX[8<[E6?o.e6g< [8<[E6?o9?8"j6Y!YY8SK?!<.H9 E6l!YUX +.ai_u.b.aq_q..5,_,. f.a5_ar. 78ai$ƒ!9!<?@X<9@X<!!Y„\ c / R IJ<[8<[E6?  3/ 5 "•6<p<k:!"l_6p6?C!_uq Y@U  3/ 5 _9?8"j6I!YYT9Y8SkX6priYUK?h3/  4"K96=[8R<?^99?@H9 !.h<?9 EFSI_ !kXcH6"E<?6e<9?C66l!„\ c / R $ +.I$a_5i!Y>!$,!Y>„\/.b.I$,!Y>!$a_5i!Y>„\ a / 5 . .I$i!Y>!$a_i5!Y>„\/f.I$a_,5!Y>!$i!Y>„\ a / 5 . 5 78a,$N?@c?@H6?DYY!Y„\<@XK?e<K?h9?8"j6!Y?v<?jA+`Y„\/_ „\  / a _„\ a / 5 kX„\[.@X9!<+k:!"lIGYU[8<[E6?/ a _9?8"j6_5Uh9/[8R <?^94"K96=9h<?YkX  6l![8<[E6?/ a . +._i!YkX_r.b._i!YkX. ._i!YkXa_.f.q_5!YkX. 785$?@i_q!Y?v<?jA`Y„\kX„\ a / 5 9H6[‚<knYU[8<[E6?/ a U@{<_ "8<<p<.3!8A?B<C<9?8"j6_5Uh9K?h/[8R<?^94"K96=_[8<[E6?fkX6ƒ<Ug_5r!Y KYU@g.`<"TY@U6l![8<[E6?/ a UX +.a_.b.a_q.._r.f.q_. b.$™3š/4›/= $Š/œ2›+/4678$:6785";<678q= 785$6?@Fy"`A?B<C<$ „\  → + 0 ,2 9/? 4o=  → U@!<3/ 42 4=  → + N 4’=  → + "3/ 42 4= okX‡Ut<Uj9UX$ +.„\/kX„\4F@5=ab.„\43/5=ak!„\3/5 .„\a/5kX„\3/5f.„\/kX„\3/5 785$?lRA?7<?@X<9@X<a5_!YF!66! @’@_9?8U^R9@X<ITFB<A?mY?86y `"\Y9H6 [‚<kn84/=4[8=9 @<Ye9 <K#Y6?@9nA?B<<cBR !?@!<9@X<9?8"y6K?S Uy<K;99l!8/UX$ +.5.5!b.i.i!Y.u.!Yf.qu.r!Y 785a$?@_aY@UIe ” 98k! — _rY@U„\4/ a =  k! — @[8<[ ” 6?6? – !_,Y@U  3/ 5 4U@! “ <=.3!8 K?6! – 6A?! ˜ < – <c! ˜ R !?@! — <9@! — <_9?8"y ” 6%U• – 9K?• – /4F! ˜ <A?7 ˜ YK? ˜ [8R<?7 – 9_y ˜ "K96=.! – 9  ” 68 ˜ !%U! —  +.r_ub.i_,r..5_5i . f._i. 7855$jA6?^9o 3 6p9s<FS?g9A @9@<UXuq.6e<9?6?p!?@668!oaUX$ +.„\Uab.+UUa. b af. Ua 785q$?@_r!Y„\/ a 9H6[‚<k:!"lkn[8<[E6?/ a 9?8"j6?v<?jAK?h4/  _ /=kX[8<[E6?o.N?9?VY[8<[E6?U[kX@[8<[E6?o9?w?@X9!<9S"!"j6I!@ <?V8!YIT984I;96pK?h/I!R != +.i_i!Y.b.r!Y..5i!Y. f.a!Y. 785r$?@Y!YIT9„\kX@iYU[8<[E6??v<?jA`Y84/ a =  _kX  3/ 5 _q. 3!8K?6H6A?B<C<cBR !?@X<9@X<_9?8"j6_rY!Y?v<?jAIT9KYU@gkX%Uh9K?h/ 4FB<A?mYK?}[8R<?^9_G"K96=.H9 E6l!YkX%Ut<Uj9UX$ +._ikX_5. b._ikX5_5i. . u_ikX5_5i. f.u_ikX_5. 785u$?@?v<?jA`Y_!Y„\kX_,!Y8kX@5YU[8<[E6?6?C!?v<?jA`Y   3/ 5 _qkX!/ a _.3!8K?6H6A?B<C<cBR !?@X<9@X<_9?8"j6[8<[E6?okXK?h /4FB<A?mYK?}[8R<?^9=.?@%YU[8<[E6?!/kX@[8<[E6?o9?wUj<K;99l!9?8 "j6UXUn<<?^9.H9 E9S9?Z86l!%UX +.5.b...ar. f.5. 6 785i$?@cY@U„\9!<?@! — <9@! — <9 @<[8<[ ” 6?6? – !RY@U  3/ 5 49• ˜ UV ” c$Rˆ$q=_9?8 "y ” 6Ye ” 9F! ˜ <A?7 ˜ YK? ˜ [8R<?7 – 9k! — [8<[ ” 6?6?• ˜ 6? – !Ye – F8<•!9.3e – Y@U\U\69 @<[@Uy ” <„\ 9 V<<?y — <K?I ” ?@! — 9!<U! — +.ac.b.R..c. f.R. 785,$?VY5YU[8<[E6?!/kX@YT96S69?8ž9<?"€<YU[8<[E6?+UU a  <`<"TcY@U‹Uh9_K?8^R"#8";<A?B<C<?@X<9@X<9?^R9 @<6S66p_iY@U6?^9K;99l!. ?VY9;AYU[8<[E6?!/kX@6S6_K?8^R"#8";<A?B<C<?@X<9@X<9?^R9 @<6S6 6p_rY@U6?^9K;99l!.h<?c. +._uq.b.._q.  f._i. 78q$?B<C<9?8žA?7<6l!\F9\9 @<Ye9 <!c94=kXYe9 <I!’y4=K?H6<?!8 G6H6"ZY$!‹4=9?8D<<?E6?_6ƒ<4=6?~YT96?#8>I‹4=9g@FB<A?mY!c9_6ƒ<4=9g@FB< A?mYY8S>6‹4=6t<"8<<p<_6ƒ<4=K?e<6t<"8<<p<.?D<cŒ9"d<UX +.!_I.b.!_I_6..!_6. f.I_6. ›$Š/œ2œbŸ4678$:678q";<678r= 78q$.?@ _5r !Y ?v< ?jA `Y //_  a //_  r  q / 9H6 [‚< k:! "l kn 5 YU[8<[E6?!/.s<K?SUj<Y8SK?!<9?8"j6F!8K?A?B<C<UX$ +.a_q!Yb.r_5q!Y.i_5!Y f.N;9•8B K?H6 78q$?@_q!Y?v<?jA?!!<6@U"y<6?C6UX"`<"|<K;9;A<?!89H6[‚<kn! k:!"l_F!8A?B<C<9?8"j6_i!Y6?^9 †<.e<9?C6A?7<9}6l!?!!<6@UUX$ +. a /kX   q /b.   q /kX a  u / . a  q /kX 5  u /f. a  u /kX 5  , / 78qa$ @<FS6H6A?B<C<6p9?Z6p6l!\F9\`Y$4=A?B<C<9 z<?jA>4=A?B<C< 6T<>4a=A?B<C<9?8žA?7<>45=A?B<C<@c?p!_A?B<C<"•69 <6?@Y…\F9\UX +.4= b.45=..4a=. f.4a=kX45=. 78q5$ S9 6?HR?@X<9@X<_Y@U\F9\o9?8"j6_aY@U/   kX_aY@U  /.;86?@_ Y@Uo9H6[‚<?;9kn!/9?w9?8"j6i_!YY8S.e<9?C66^89g@6l!+UX$ +.//   a  b. a // a  .//   q  f. a //   q 78qq$?@r_r!Y?v<?jAo`Y\9!<@UkXA @A!<@U 9H6[‚<?;9kn!9?8"j6a_ar Uh9 K?h    4"K96=. ?X<? A?t< xk#K?S Uj<6l! \9!<@U kXA @A!<@U9 @<?v< ?jA oUt< Uj9UX$ +.55_5ixkXqq_qxb.ar_qxkXra_qx .u_uxkXu_,xf.q_qxkXu5_5ix 78qr$ v< ?jA o6p?" @6!6I@< "`< "|< UV< 9;A6p o  ˆa_r. ^Rr_a !Y oUT kX@ !Y [8<[E6?6?C!cd69H69?h6??jA9?w9?8"j6[8<[E6?‡kX9?^R9?@H9 !_rii Uh9K?hK?eG"K96 6p    ˆaa.b;9 J<[8<[E6?‡6?C!!<"\?9kn<`<"Tx.H9 E 6l!UX$ +._aqxb._5ax._ix f._5ux 7 78qu$8<<p<?v<?jAokX6p6e<9?C6 q  i /  9 @<[8<[E6?!/_9?8FB<A?mY Y8S a  q /  !_ a  a /  !kXFB<A?mYK?H6.e<9?C66^89g@6l!okXUX +.  ˆ•  •  •//kX a •  •ˆ•//. b. a •  •//•ˆ  kX  ˆ•//•  • a . . a •4/=•4/=•ˆ  kX  ˆ•  •  •//. f./ˆ•  •  •  •ˆ/kX/ˆ•4/=•  •ˆ  78qi$v<?jA+`Y!<6@U<@_"y<6?C6kXYT9!c9<@_"y<6?C6.?!+9?X<??!A?t< IJ<<?!8$ L?t<$ S9 6?HR?@X<9@X<9?^R9g@9?X<?_5Uh9K?h/  4"K96= L?t<$ŠF9\?p!?@X<9@X<kXk:!"l9?8"j6YT9\F9\. S9 6?HR\F9\<XR9?wUj<<n6 F<? ! +._i!Yb._u!Y.a_r!Y f.?!cH6"E<?"j6 78q,$?@ a_ai !Y ?v< ?jA`Y  a /_  a //_  r  q / 9H6[‚<k:!"lkn ! 9?@H9 !ruYUK?h4"K96=.e6g<[8<[E6?9?w9?8"j6?v<?jA †<.N?SUj<UX$ +.a_r!Yb.5_5!Y.5_u!Y f.5_ur!Y 78r$ZK?} ?@X< 9@X< u_r !Y ?v< ?jA „\_ „\/_ „\ a / 5 _„\  / a 6t< k:! "l _5 Uh9 / 4"K96=.N?SUj<„\9?8"j6UX$ +.5_5!Yb.r!Y.,_!Y f._i!Y Cho biết khối lượng nguyên tử (theo đvC) của các nguyên tố: Na= 23; K= 39; Ca= 40; Mg= 24; Al= 27; Ba= 137; Fe= 56; Zn=65; Cu= 64;Ag=108; C= 12; H= 1; Cl= 35,5; Br= 80; S= 32; O= 16; N= 14; He= 4. ¡ . 8