练习3.9完成下列反应式:-|||-H _(2)(H)_(5)-|||-(1) =c +_(2)arrow -|||-_(5)(C)_(2) H-|||-(2) -C=C-COOH+(Br)_(2)arrow -|||-(3)(CH3)2C=CH2 Br2,H2O-|||-(4) ((C{H)_(3))}_(2)C=!=!= C(H)_(2)xrightarrow ({H)^+,(H)_(2)O}-|||-(5) bigcirc Cl2,H2O-|||-(6) -CHCH+(H)_(2)O dfrac ({H)_(2)S(O)_(4)}({H)_(2)S(O)_(4)}-|||-bigcirc -|||-( )H-|||-(7) bigcirc ①H2SO4-|||-bigcirc (2)(H)_(2)O-|||-(8) =C(H)_(2) 50%H2SO4/H2O-|||-(H)_(3)-|||-(9) (H)_(3)COOH-|||-H +-|||-_(2)S(O)_(4)-|||-(10)-|||-( )H