Осуществите следущие превращения:
a)Cu->CuO->CuSO4->Cu(OH)2->CuO->Cu
b)P->P2O5->H3PO4->Ca(PO4)2
D)Li->Li2O->LiOH->Li2SO4
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Осуществите следущие превращения:
a)Cu->CuO->CuSO4->Cu(OH)2->CuO->Cu
b)P->P2O5->H3PO4->Ca(PO4)2
D)Li->Li2O->LiOH->Li2SO4
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Verified answer
a)Cu->CuO->CuSO4->Cu(OH)2->CuO->Cu
2Cu + O2 = 2CuO
CuO + SO3 = CuSO4
CuSO4 + 2NaOH = Cu(OH)2 ↓ + Na2SO4
Cu(OH)2 = (над равно t) СuO + H2O
CuO + H2 = Cu + H2O
b)P->P2O5->H3PO4->Ca(PO4)2
4P + 5O2 = 2P2O5
P2O5 + 3H2O = 2H3PO4
2H3PO4 + 3CaO = Ca3(PO4)2 ↓ + 3H2O
D)Li->Li2O->LiOH->Li2SO4
4Li + O2 = 2Li2O
Li2O + H2O = 2LiOH
2LiOH + H2SO4 = Li2SO4 + 2H2O