State whether 0.1 M solutions of each of the following salts are acidic, basic, or neutral. Explain your reasoning for each by writing a balanced net ionic equation to describe the behavior of each nonneutral salt in water: NaCN, KNO3, NH4Cl, NaHCO3, and Na3PO4.

1) NaCN is a basic salt

2) is a neutral salt

3) is an acidic salt

4) is a basic salt

5) is a neutral salt

Explanation:

Salts are formed by the combination of an acid and a base. There are 3 types of salt:

Acidic salt: It is formed by the combination of strong acid and weak base.Basic salt: It is formed by the combination of a strong base and weak acid.Neutral salt: It is formed by the combination of strong acid and strong base or weak acid and weak base.

For the given salts:

1) NaCN is a basic salt as it is formed by the combination of sodium hydroxide (strong base) and HCN (weak acid). The chemical equation for the hydrolysis of salt follows:

As NaOH is released in the solution. Thus, it is a basic salt.

2) is a neutral salt as it is formed by the combination of potassium hydroxide (strong base) and nitric acid (strong acid).

3) is an acidic salt as it is formed by the combination of ammonium hydroxide (weak base) and HCl (strong acid). The chemical equation for the hydrolysis of salt follows:

As HCl is released in the solution. Thus, it is an acidic salt.

4) is a basic salt as it is formed by the combination of sodium hydroxide (strong base) and partial dissociation of carbonic acid (weak acid). The chemical equation for the hydrolysis of salt follows:

As NaOH is released in the solution. Thus, it is a basic salt.

5) is a neutral salt as it is formed by the combination of sodium hydroxide (strong base) and phosphoric acid (strong acid).

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Answer:

a. energy is absorbed in the reaction.

explanation:

if in a given reaction the energy of products is greater than the energy of reactants it means that reaction is endothermic and during the reaction, the energy is absorbed by reactants. in an endothermic reaction, the products have more stored chemical energy than the reactants. and in this reaction the reactants are more stable than products before the compounds with less energy are always more stable.