(每小题3分,共15分)(1)实验室制取氯气反应的离子方程式为
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(每小题3分,共15分)

(1)MnO+4H+2Cl= Mn 2++Cl↑+2H

(2)2Cl+2Ca(OH)= CaCl+Ca(ClO)+2H

(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 2(s)+CO 2(g)=NaCO 3(s)+ 0.5 O 2 (g) ;△H=" -" Q KJ/mol

(5)6Fe 2+ + 8Br -+ 7Cl 2=" " 6Fe 2+ + 4Br 2 + 14Cl -