Автор - biima2010

Помогите решить задачу.

Ответ

Автор - Cr0mvel

А) 2Na + 2H2O = 2NaOH + H2

2NaOH + CuCl2 = 2NaCl + Cu(OH)2

Cu(OH)2 = CuO + H2O

3CuO + 2Al = 3Cu + Al2O3

Cu + Cl2 = CuCl2

Б) 4P + 5O2 = 2P2O5

P2O5 + 6NaOH = 2Na3PO4 + 3H2O

2Na3PO4 + 3CaCl2 = Ca3(PO4)2 + 6NaCl

Ca3(PO4)2 + 3H2SO3 = 2H3PO4 + 3CaSO3

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