Помогите расписать в свете ТЭД и окислительно-восстановительный процесс(если возможно): S->SO2->H2SO3->Na2So3

1.S+O2=SO2

2. SO2+H2O=H2SO3

3.H2SO3+NaOH= Na2SO3+H2O

 

P->P2O5->H3PO4->Na3PO4

1. P2+O2= P2O5

2.P2O5+H2O= H3PO4

3. H3PO4+NaOH=NaPO4+H2O

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