5.2 SALTS

acid + base  salt + water What are salts? Salts are a class of ionic compounds that can be produced when an acid and a base react HA + BOH  BA + H2O acid + base  salt + water

acid + base  salt + water A salt is made up of a positive ion from a base and a negative ion from an acid. HA + BOH  BA + H2O acid + base  salt + water HCl + KOH KCl + H2O

acid + base  salt + water A salt is made up of a positive ion from a base and a negative ion from an acid. HA + BOH  BA + H2O acid + base  salt + water Acid – Base Neutralization

Acid – Base Neutralization HA + BOH  BA + HOH HA + BOH  BA + H2O

Acid – Base Neutralization Read page 234 – 236 and do:

Acid – Base Neutralization WORKBOOK page 91

acid salt acid acid base salt acid salt base salt acid acid acid acid acid base salt acid base base base salt

Metals react with oxygen to form metal oxides Na2O K2O CaO MgO

Non - Metals react with oxygen to form non metal oxides CO2 SO2 NO CO

when a metal oxide dissolve in water... Metal Oxides React with Water when a metal oxide dissolve in water... MO(s) + H2O(l) … MO(s) + HOH(l)  MOH(aq) Na2O(s) + H2O(l)  2 NaOH(aq) metal oxide + water  base

when a metal oxide dissolve in water... Metal Oxides React with Water when a metal oxide dissolve in water... MO(s) + H2O(l) … MO(s) + HOH(l)  MOH(aq) Na2O(s) + H2O(l)  2 NaOH(aq) The solution is BASIC

when a non - metal oxide dissolve in water... Non - Metal Oxides React with Water when a non - metal oxide dissolve in water... NO(s) + H2O(l) … non - metal oxide + water  acid SO2(s) + H2O(l)  2 H2SO3(aq) The solution is ACIDIC

Metal Oxides and Non – Metal Oxides Read page 237 and do:

WORKBOOK page 93 Metal Oxides and Non – Metal Oxides metal oxide + water  base non - metal oxide + water  acid

metal oxide + water  base non - metal oxide + water  acid

metal oxide + water  base non - metal oxide + water  acid

base acid base acid metal oxide + water  base non - metal oxide + water  acid base acid base acid

Metals of Groups 1 and 2 (Alkali Metals and Alkaline Earth Metals) Metals and Acids Metals of Groups 1 and 2 (Alkali Metals and Alkaline Earth Metals)

Other metals are not that reactive with acids Metals and Acids Metals of Groups 1 and 2 (Alkali Metals and Alkaline Earth Metals) react vigorously with water and acids Other metals are not that reactive with acids

acid + metal  salt + hydrogen Metals and Acids When a metal reacts with an acid, a salt and usually hydrogen gas is produced HA + M  MA + H2 acid + metal  salt + hydrogen

HCl(aq) + Mg(s)  MgCl2(aq) + H2(g) Metals and Acids When a metal reacts with an acid, a salt and usually hydrogen gas is produced HA + M  MA + H2 HCl(aq) + Mg(s)  MgCl2(aq) + H2(g)

Metals and Acids Read page 238 and do:

Carbonates and Acids Metal Carbonates CO32- CaCO3 MgCO3 Na2CO3 K2CO3

CO32- Carbonates and Acids Carbonate rocks react with acids to produce... CO32- metal carbonate + acid  salt + water + carbon dioxide

Carbonate rocks react with acids to produce... Carbonates and Acids Carbonate rocks react with acids to produce... CO32- CaCO3 + H2SO4 CaSO4 + H2O + CO2

5.2 Check Your Understanding TEXTBOOK page 93

5.2 SALTS QUIZ Date: Wednesday, Dec 18