Question

Na → Na₂O → NaOH → Na3 PO4​

Answer 1

Ответ:

Объяснение:

1) Na+ Na2O2---->2Na2O

2) Na2O + H2O---->2NaOH

3) Na2HPO4 + NaOH---->Na3PO4 +H2O

4) Na3PO4 + H2SO4 -----> NaH2PO4 + Na2SO4

Answer 2

The sequence you provided represents a series of chemical reactions involving the element sodium (Na) and other compounds. Let's go through each step:

1. Na → Na₂O: In this step, sodium reacts with oxygen to form sodium oxide (Na₂O). The balanced equation for this reaction is:

4 Na + O₂ → 2 Na₂O

2. Na₂O → NaOH: Sodium oxide (Na₂O) can react with water (H₂O) to form sodium hydroxide (NaOH), also known as caustic soda. The balanced equation for this reaction is:

Na₂O + H₂O → 2 NaOH

3. NaOH → Na₃PO₄: Sodium hydroxide (NaOH) can react with phosphoric acid (H₃PO₄) to produce sodium phosphate (Na₃PO₄). The balanced equation for this reaction is:

3 NaOH + H₃PO₄ → Na₃PO₄ + 3 H₂O

Overall, the sequence of reactions can be summarized as follows:

Na + 1/2 O₂ → Na₂O Na₂O + H₂O → 2 NaOH 3 NaOH + H₃PO₄ → Na₃PO₄ + 3 H₂O

Please note that these equations represent simplified stoichiometric relationships and do not take into account reaction conditions or other factors that may influence the reactions.