高一化学题求解答
展开全部
(1)
A为Na,B为Na2O2,C为NaOH,D为NaCl,E为HCl
A到B: 2Na+O2=Na2O2
B到C: 2Na2O2+2H2O=4NaOH+O2(气体符号唯派,打辩山纳不出来)
C到携没D: NaOH+HCl=NaCl+H2O
B到D: 2Na2O2+4HCl=4NaCl+2H2O+O2
A为Na,B为Na2O2,C为NaOH,D为NaCl,E为HCl
A到B: 2Na+O2=Na2O2
B到C: 2Na2O2+2H2O=4NaOH+O2(气体符号唯派,打辩山纳不出来)
C到携没D: NaOH+HCl=NaCl+H2O
B到D: 2Na2O2+4HCl=4NaCl+2H2O+O2
追答
(2)
① S+O2=(高温)=SO2
②SO2+H2O=H2SO3
③SO2+2NaOH=Na2SO3+H2O
④ SO2+2OH- =SO3 2- +H2O
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