2023年高考辽宁卷化学理综试题试卷历年试题及答案

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O

(H2SO5)^^W3o=s—O-O-H-imoiH2so5NA

Ô-H

['bH3O?1

2+

ffl^?LUiT>pH=4,Mn^H2SO5ft^MnO2,œfiügfm»:

2+2+174

H2O+Mn+