Вкажіть рівняння реакції розкладу:
а) 2Al + 6HCl = 2AlCl 3 + 3H 2
б) 3Ca(OH) 2 + 3H 3 PO 4 = Ca 3 (PO 4 ) 2 + 6H 2 O
в) 4Al + 3O 2 = 2Al 2 O 3
г) 2Cu(NO 3 ) 2 = 2CuO + 4NO 2 + O
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