unit 8
DESCRIPTION
Unit 8. Net Ionic Reactions. Spectator Ions. Ag NO 3 ( aq ) + Na Cl ( aq ) Ag Cl (s) + Na NO 3 ( aq ). Ag Cl (s). Na + + NO 3 -. Na + + Cl -. Ag + + NO 3 -. Any ionic compound will dissociate when dissolved in H 2 O (aqueous ionic compounds). Spectator Ions - PowerPoint PPT PresentationTRANSCRIPT
Net Ionic Reactions
Unit 8
1
Spectator Ions
2
AgNO3 (aq) + NaCl (aq) AgCl (s) + NaNO3 (aq)
Ag+ + NO3- Na+ + Cl- Na+ + NO3
-AgCl (s)
Any ionic compound will dissociate when dissolved in
H2O (aqueous ionic compounds)
Spectator IonsIons that do not
actively participate in a chemical reactions.
Not spectators if:• Change physical state (aq solid)• Form covalent compound (Br- Br2)• Form new covalent compound
(H2O H2S)
Ionic and Net Ionic Equations
3
Ionic EquationAll molecules are included in the chemical equation
Net Ionic EquationSpectator ions have been removed from the
chemical equation
AgNO3 (aq) + NaCl (aq) AgCl (s) + NaNO3 (aq)
Ag+ + Cl- (aq) AgCl (s)
Ag+ + NO3- Na+ + Cl- Na+ + NO3
-AgCl (s)
Ionic and Net Ionic Equations
4
For the following reactions, write a net ionic equation
Ni (s) + Cu(NO3)2 Ni(NO3)2 + Cu (s)
Na(C2H3O2) (aq) + NH4Cl (aq) NH4(C2H3O2) (aq) + NaCl (aq)
FeCl3 (aq) + 3 NaOH (aq) Fe(OH)3 (s) + NaCl (aq)