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Net Ionic Equations Net-ionic Equations Net Ionic Equations Net-ionic Equations

Net Ionic Equations Net-ionic Equations - PowerPoint Presentation

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Net Ionic Equations Net-ionic Equations - PPT Presentation

Net ionic equations are useful in that they show only those chemical species directly participating in a chemical reaction The keys to being able to write net ionic equations are the ability to recognize monatomic and polyatomic ions ID: 915662

equations ionic ions net ionic equations net ions equation complete baco3 reaction 2oh participate spectator sodium chemical 2na continued

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Presentation Transcript

Slide1

Net Ionic Equations

Slide2

Net-ionic Equations

Net ionic equations are useful in that they show only those chemical species directly

participating in

a chemical

reaction

The keys to being

able to

write net ionic equations are the ability to recognize monatomic and polyatomic ions,

the solubility

rules, and the rules for electrolyte behavior.

Slide3

Net ionic equations

Complete ionic equations

An ionic equation that shows all of the particles in a solution as they realistically exist

2

Na

+

(

aq

) + 2OH- (

aq

) + Cu

+2

(

aq

) + 2

Cl

-

(

aq

)

2

Na

+

(

aq

) + 2

Cl

-

(

aq

) + Cu(OH)

2

(s)

Note

that the

sodium ions

and the

chloride ions

are both reactants and products, therefore they do not participate in the reaction

Ions that do not participate in the reaction are called

spectator ions

Slide4

Net-ionic Equations

Ionic equations that include only the particles that participate in the reaction are called net

ionic equations

Net ionic equations are written form complete ionic equations by crossing out all spectator ions

Example:

2

Na

+ (aq) + 2OH- (aq) + Cu+2 (aq) + 2Cl- (aq)  2 Na + (aq) + 2 Cl- (aq) + Cu(OH)2 (s)

Slide5

Net-ionic Equations

A net ionic equation is what remains after the sodium and chloride ions are crossed out of this complete ionic equation

2OH

-

(

aq

) + Cu

+2 (aq)  Cu(OH)2Only the hydroxide and copper ions are left in the net ionic equation shown above

Slide6

Example:

Write the chemical, complete ionic, and net ionic equations for the

rxn

between aqueous solutions of barium nitrate and sodium carbonate that forms the precipitate barium carbonate.

Complete Ionic Equation:

Ba(NO

3

)2 (aq) + Na2CO3 (aq)  BaCO3 (s) + NaNO3 (aq)Balance the equation above:Ba(NO3)2(aq) + Na2CO3 (

aq) + BaCO3 (s) + 2 NaNO

3 (aq)

Slide7

Example continued:

Show the ionic states of the reactants and products

Ba

+2

(

aq

) + 2NO

3- (aq) + 2Na+ + CO3-2 (aq)  BaCO3 (s) + 2 Na+ (aq) + 2NO3- (aq)Cross out the spectator ions from the complete ionic equation:Ba+2 (aq) + 2NO3- (aq) + 2Na

+ + CO3-2 (aq) 

BaCO3 (s) + 2

Na+ (

aq

) + 2NO

3

-

(

aq

)

Slide8

Example continued:

The net ionic equation is:

Ba

+2

(

aq

) + CO

3-2 (aq)  BaCO3 (s)

Slide9

Practice

Work on problems 33-36 on pg. 294 of your chemistry book