Write a balanced equation for the neutralization of each of the follower chemical equations:A. HCl(aq) and Fe(OH)3(s) B. H2CO3(aq) and Mg(OH)2(s)Express as a chemical equation identifying all phases in your answer.

Respuesta :

1) Dissociation of HCl(aq) and Fe(OH)3(s)

HCl

[tex]HCl\rightarrow H^++Cl^-[/tex]

Fe(OH)3

[tex]Fe(OH)_3\rightarrow Fe^{3+}+3OH^-[/tex]

2) Combine the chemical equations above and balance.

[tex]HCl+Fe(OH)_3\rightarrow FeCl_3+H_2O[/tex]

List the elements (or polyatomic ions) in the reactants.

H: 4

Cl: 1

Fe: 1

O: 3

List the elements (or polyatomic ions) in the products.

H: 2

Cl: 3

Fe: 1

O: 1

Balance Cl.

[tex]3HCl+Fe(OH)_3\rightarrow FeCl_3+H_2O[/tex]

List the elements (or polyatomic ions) in the reactants.

H: 6

Cl: 3

Fe: 1

O: 3

List the elements (or polyatomic ions) in the products.

H: 2

Cl: 3

Fe: 1

O: 1

Balance H.

[tex]3HCl+Fe(OH)_3\rightarrow FeCl_3+3H_2O[/tex]

List the elements (or polyatomic ions) in the reactants.

H: 6

Cl: 3

Fe: 1

O: 3

List the elements (or polyatomic ions) in the products.

H: 6

Cl: 3

Fe: 1

O: 3

The balanced chemical equation is

[tex]3HCl_{(aq)}+Fe(OH)_{3(s)}\rightarrow FeCl_{3(aq)}+3H_2O_{(l)}[/tex]

3) Dissociation of H2CO3(aq) and Mg(OH)2(s)

H2CO3

[tex]H_2CO_3\rightarrow2H^++CO_3^{2-}[/tex]

Mg(OH)2

[tex]Mg(OH)_2\rightarrow Mg^{2+}+2OH^-[/tex]

4) Combine the chemical equations above and balance.

[tex]H_2CO_3+Mg(OH)_2\rightarrow MgCO_3+H_2O[/tex]

List the elements (or polyatomic ions) in the reactants.

H: 4

C: 1

O: 5

Mg: 1

List the elements (or polyatomic ions) in the products.

H: 2

C: 1

O: 4

Mg: 1

Balance H.

[tex]H_2CO_3+Mg(OH)_2\rightarrow MgCO_3+2H_2O[/tex]

List the elements (or polyatomic ions) in the reactants.

H: 4

C: 1

O: 5

Mg: 1

List the elements (or polyatomic ions) in the products.

H: 4

C: 1

O: 5

Mg: 1

The balanced chemical equation is

[tex]H_2CO_3+Mg(OH)_2\rightarrow MgCO_3+2H_2O[/tex]