1. SALTS When you hear the word salt, what do you think of?

2. It’s not just table salt!!! A salt is any compound containing a positive ion other than H + and a negative ion other than OH -. What are some salts? Sodium chloride, NaCl  Na + + Cl - Magnesium sulfate, MgSO 4  Mg +2 + SO 4 -2

3. How to prepare a salt Reaction of a salt with an acid. Neutralization Acid + Base  Salt + Water 2HCl + Ca(OH) 2  CaCl 2 + 2HOH Single Replacement An active metal reacts with an acid to produce a salt and hydrogen gas. Mg + H 2 SO 4  MgSO 4 + H 2

4. How to prepare a salt Reaction of a metal oxide with a nonmetal oxide. Combination of elements Fe + S  FeS (a salt) Double Displacement Two salt solutions precipitate a new salt. BaCl 2 + (NH 4 ) 2 SO 4  BaSO 4 (s) + 2NH 4 Cl