Make up the reaction equations corresponding to the scheme: a) phosphorus – phosphorus oxide (v)

Make up the reaction equations corresponding to the scheme: a) phosphorus – phosphorus oxide (v) – phosphoric acid – sodium phosphate b) lithium – lithium oxide – lithium hydroxide – lithium carbonate

a) 1. We compose the equation of the reaction between phosphorus and oxygen. Phosphorus (V) oxide is formed.

2. Phosphorus (V) oxide is an acidic oxide, when interacting with water forms an acid. We draw up the equation for the reaction between phosphorus oxide and water.

3. Acids react with bases. Let’s compose the equation of the reaction between phosphoric acid and sodium hydroxide.

b) 1. Let’s compose the equation of the reaction between lithium and oxygen.

2. Lithium oxide is a basic oxide that forms a base upon interaction with water. Let’s compose the equation of the reaction between lithium oxide and water.

3. Alkalis (lithium hydroxide) react with acidic oxides. Let’s compose the equation of the reaction between lithium hydroxide and acidic oxide – carbon monoxide (IV) – carbon dioxide.

4P + 5O2 = 2P2 O5.

P2 O5 + 3 H2O = H3 PO4

H3 PO4 + 3NaOH = Na3 PO4

4Li + O2 = 2Li2O

Li2O + H2O = 2LiOH

2 LiOH + CO2 = Li2CO3 + H2O