Write down the equations of the following transformations: P – P2O5 – H3PO4 – K3PO4 – Ag3PO4.

Write down the equations of the following transformations: P – P2O5 – H3PO4 – K3PO4 – Ag3PO4. Write complete and abbreviated ionic reaction equations.

Let us write down the equations for this chain of transformations:
4P + 5O2 = 2P2O5 – compound reaction, phosphorus oxide is formed (5);
P2O5 + 3H2O = 2H3PO4 – compounds, phosphoric acid obtained;
2H3PO4 + 3K2O = 2K3PO4 + 3H2O – ion exchange, potassium phosphate was obtained;
K3PO4 + 3AgNO3 = Ag3PO4 + 3H2O – ion exchange, silver phosphate was obtained;
Silver phosphate is used to make light-sensitive paper and emulsions. The reactions confirm the connection of inorganic substances: oxides, acids, salts.