(每小题3分,共15分)
(1)MnO 2+4H ++2Cl -= Mn 2++Cl 2↑+2H 2O
(2)2Cl 2+2Ca(OH) 2= CaCl 2+Ca(ClO) 2+2H 2O
(3) 2 KClO 3+ 1 H 2C 2O 4+ 1 H 2SO 4= 1 K 2SO 4+ 2 ClO 2↑+ 2 CO 2↑+ 2 H 2O
(4)Na 2O 2(s)+CO 2(g)=Na 2CO 3(s)+ 0.5 O 2 (g) ;△H=" -" Q KJ/mol
(5)6Fe 2+ + 8Br -+ 7Cl 2=" " 6Fe 2+ + 4Br 2 + 14Cl -
略