The reactants and products in the chemical equation provided are as follows:

Reactants:

Potassium oxide (K2O)Carbon dioxide (CO2)Sodium phosphate (Na3PO4)Sulfuric acid (H2SO4)Aluminum hydroxide (Al(OH)3)Copper(II) nitrate [Cu(NO3)2]

Products:

Not specified in the equation provided.

If you would like the products to be determined, please indicate so.