Prove the properties of acids using the example of phosphoric acid. Write down the reaction equations

Prove the properties of acids using the example of phosphoric acid. Write down the reaction equations in molecular and ionic form.

Interaction with metals

3Mg + 2H3PO4 → Mg3 (PO4) 2 ↓ + 3H2 ↑

3 Mg0 + 6H ++ 2PO43- → Mg3 (PO4) 2 ↓ + 3H2 ↑

Interaction with basic oxides

3MgО + 2H3PO4 → Mg3 (PO4) 2 ↓ + 3H2О

3MgО + 6H ++ 2PO43- → Mg3 (PO4) 2 ↓ + 3H2О

Interaction with bases

3Ba (OH) 2+ 2H3PO4 → Ba3 (PO4) 2 ↓ + 6H2О

3Ba2 ++ 6OH- + 6H ++ 2PO43- → Ba3 (PO4) 2 ↓ + 6H2О

Interaction with salts of weak acids

3Na2SiO3 + 2H3PO4 → 2Na3PO4 + 3H2SiO3 ↓

6Na ++ 3SiO32- + 6H ++ 2PO43- → 6Na ++ 2PO43- + 3H2SiO3 ↓

SiO32- + 2H + → H2SiO3 ↓