Write down the equations of possible reactions between substances. H2O, Mg, Ag, CuO, NaOH, Al (OH) 3, P2O5

1) When magnesium and water interact, we can observe the formation of substances of magnesium oxide and hydrogen. The molecular equation of the reaction can be written as follows:

Mg + H2O = MgO + H2

2) Pentavalent phosphorus oxide reacts with water and phosphoric acid is formed.

P2O5 + 3 H2O = 2 H3PO4

3) The reaction takes place between magnesium and copper oxide to form magnesium oxide and pure copper. This reaction proceeds according to the type of exchange.

Mg + CuO = MgO + Cu

4) As a result of the reaction, compounds can be formed from copper oxide and pentavalent phosphorus oxide complex substance, a bivalent copper phosphate salt.

3 CuO + P2O5 = Cu3 (PO4) 2

5) Sodium hydroxide interacts with pentavalent phosphorus oxide and the substance sodium phosphate salt is formed and water is released.

6 NaOH + P2O5 = 2 Na3PO4 + 3 H2O.