Mixing Aqueous ionic compounds…

Na+ Cl -

Disassociation

Na+

Cl -

NaCl(aq)

NaCl(s)

AB(aq) + CD(aq)

A+

B -

C+

D -

WHAT HAPPENS WHEN YOU COMBINE THEM?

A+ B - C+ D -

AB(aq) + CD(aq)

A+

B -

C+

D -

WHAT HAPPENS WHEN YOU COMBINE THEM?

AB(aq) + CD(aq)

A+

B -

C+

D -

WHAT HAPPENS WHEN YOU COMBINE THEM?

AB(aq) + CD(aq) AD(aq) + BC(s)

A+

B -

C+

D -

WHAT HAPPENS WHEN YOU COMBINE THEM?

What happens when we put sodium hydroxide in water, copper chloride in water and then mix them?

Na+

1

OH -1

Cu+

2

Cl -1

Cl -1

Sodium Hydroxide (NaOH)Copper Chloride (CuCl2)

Na(OH)(aq) + CuCl2(aq)

Na+

1

OH -1

Cu+

2

Cl -1

Cl -1

Na(OH)(aq) + CuCl2(aq)

Na+

1

OH -1

Cu+

2

Cl -1

Cl -1

Na(OH)(aq) + CuCl2(aq)

Na+

1

OH -1

Cu+

2

Cl -1

Cl -1

Na(OH)(aq) + CuCl2(aq)

Na+

1

OH -1

Cu+

2

Cl -1

Cl -1

Na(OH)(aq) + CuCl2(aq)

Na+

1

OH -1

Cu+

2 Cl -1

Cl -1

disassociationaq = aqueous

Na(OH)(aq) + CuCl2(aq)

Na+

1

OH -1

Cu+

2 Cl -1

Cl -1

WHAT HAPPENS WHEN YOU COMBINE THEM?

Na(OH)(aq) + CuCl2(aq)

Na+

1

OH -1

Cu+

2

Cl -1

Cl -1

WHAT HAPPENS WHEN YOU COMBINE THEM?

Na(OH)(aq) + CuCl2(aq)

Na+

1

OH -1

Cu+

2Cl -1

Cl -1

Na(OH)(aq) + CuCl2(aq) NaCl(aq) + Cu(OH)2 (s)

Na+

1

OH -1

Cu+

2Cl -1

Cl -1

The Copper cation and Hydroxide anion are attracted to one another more than the water

molecules so they are going to join).

Na(OH)(aq) + CuCl2(aq) NaCl(aq) + Cu(OH)2 (s)

Na+

1

OH -1

Cu+

2Cl -1

Cl -1

Na(OH)(aq) + CuCl2(aq) NaCl(aq) + Cu(OH)2 (s)

Na+

1

OH -1

Cu+

2

Cl -1

Cl -1

The Copper and Hydroxide Join to form solid Copper Hydroxide

Equation Not Balanced

Precipitate

Na(OH)(aq) + CuCl2(aq) NaCl(aq) + Cu(OH)2 (s)

Na+

1

OH -1

Cu+

2

Cl -1

Cl -1

The Copper and Hydroxide Join to form solid Copper Hydroxide

Equation Not Balanced

PrecipitateOH

-1

2Na(OH)(aq) + CuCl2(aq) 2NaCl(aq) + Cu(OH)2 (s)

Na+

1

OH -1 Cu+

2

Cl -1OH

-1

Cl -1Na+

1

OH -1

Na+

1 Cl -1

Na+

1 Cl -1 OH -1

Cu+

2

Na+

1

OH -1

Cu+

2

Cl -1

Cl -1

OH -1

Na+

1Na+

1

OH -1

Cu+

2

Cl -1

Cl -1

OH -1

Na+

1

WRITE THIS FORMULA

BaCl2(aq) +

BaCl2(aq) + Na2(SO4)

BaCl2(aq) + Na2(SO4) 2NaCl(aq)

BaCl2(aq) + Na2(SO4) 2NaCl(aq) + BaSO4(s)

Assignment

• An aqueous solution of aluminum chloride and sodium hydroxide react to form solid aluminum hydroxide.

• Write this formula….