Complete the molecular equations of possible reactions and write down the corresponding ionic equations.

| September 10, 2021 | education

Complete the molecular equations of possible reactions and write down the corresponding ionic equations. If the reaction does not proceed, state the reason for this. 1) P2O5 + KOH = 2) Fe (OH) 2 + HNO3 = …

Both reactions indicated in the task proceed completely.

1) The first reaction is the interaction of pentavalent phosphorus oxide and potassium hydroxide. As a result of this reaction, potassium orthophosphate salt and water are formed. The molecular equation of a chemical reaction looks like this:

P2O5 + 6 KOH = 2 K3PO4 + 3 H2O

The ionic reaction equation can be written as follows:

P2O5 + 6 K + + 6 OH- = 6 K + + 2 PO4 3- + 3 H2O

The abbreviated ionic equation can be written as follows:

P2O5 + 6 OH- = 2 PO4 3- + 3 H2O.

2) The second reaction is the interaction of iron hydroxide and nitric acid. As a result of this reaction, an iron nitrite salt is formed and water is released. The molecular equation of a chemical reaction is as follows:

Fe (OH) 2 + 2 HNO3 = Fe (NO3) 2 + 2 H2O

The ionic reaction equation can be written as follows:

Fe (OH) 2 + 2H + + 2 NO3- = Fe2 + + 2 NO3- + 2 H2O

The abbreviated ionic equation can be written as follows:

Fe (OH) 2 + 2 H + = Fe2 + + 2 H2O.



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