Выполните превращения:
1.KMnO4-> O2->SO3->H2SO4->K2SO4
2.KClO3->O2->CaO->Ca3(PO4)2
3. H2O->O2->CO2-> H2CO3->Na2CO3
4.HgO->O2->K2O->K2CO3-> H2CO3
5.H2O->H2->HCl->AlCl3->Al2(SO4)3
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