ACIDS, BASES and SALTS NaOH CaCl2

Neutralization the driving forces are: ACIDS, BASES and SALTS Neutralization the driving forces are: formation of water & heat   Acid + Base  Salt + Water H+ + OH-  H2O

How do we recognize a salt? ACIDS, BASES and SALTS How do we recognize a salt?   metal + halogen (group 17) metal + polyatomic ion (Table E)

ACIDS, BASES and SALTS The front ion (_____________) in the salt is from the ______________.  The back ion (___________) in the salt is from the ___________________.

ACIDS, BASES and SALTS The front ion ( cation (+) ) in the salt is from the parent base .   The back ion (___________) in the salt is from the___________________.

ACIDS, BASES and SALTS The front ion ( cation (+) ) in the salt is from the parent base .   The back ion ( anion (-) ) in the salt is from the parent acid .

HNO3 + Ca(OH)2  Ca(NO3)2 + H2O  

  CuOH + HCl  HCl + NaOH 

acidic, basic or neutral on the pH scale? ACIDS, BASES and SALTS Neutralization   Acid + Base  Salt + Water What is the pH of the salt formed ? acidic, basic or neutral on the pH scale?

Strong Acid + Strong Base  neutral pH salt solution (~7) Strong Acid + Weak Base  acidic pH salt solution (<7) Weak Acid + Strong Base  basic pH salt solution (>7) Weak Acid + Weak Base  ??? need more information to figure out  

Salt + Water  Acid + Base Hydrolysis – reverse of the neutralization reaction Salt + Water  Acid + Base Ca(NO3)2 + H2O  HNO3 + Ca(OH)2  

  CuCl + H2O  Na2CO3 + H2O 