(10分,除标注外每空2分)
(1)(1)①负(1分) CH 4+ 10OH --8e -= CO 3 2- + 7H 2O
②CH 4+2O 2+2OH -=CO 3 2-+3H 2O
(2)①SO 2(1分)②H 2S+OH -=HS -+H 2O③ SO 2+Cl 2+2H 2O=H 2SO 4+2HCl
略
(10分,除标注外每空2分)
(1)(1)①负(1分) CH 4+ 10OH --8e -= CO 3 2- + 7H 2O
②CH 4+2O 2+2OH -=CO 3 2-+3H 2O
(2)①SO 2(1分)②H 2S+OH -=HS -+H 2O③ SO 2+Cl 2+2H 2O=H 2SO 4+2HCl
略