5.2 salts 1. what are salts? ionic compounds salts are a class of ionic compounds that can be...
TRANSCRIPT
5.2 SALTS
1
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
A salt is made up of a positive ionfrom a base and a negative ion from an
acid.
HA + BOH BA + H2O
acid + base salt + water
HCl + KOH KCl + H2O
A salt is made up of a positive ionfrom 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
page 91
WORKBOOK
acidacid
base
acid
base
acid
acid
acid
salt
base
salt
base
acid
salt
salt
acid
salt
base
acid
acid
base
salt
10
Metal Oxides• Metals react with oxygen to form metal
oxides
Na2OK2OCaO
MgO
Metal Oxides
Non - Metal OxidesNon - Metals react with oxygen to form non metal
oxides
CO2
Non - Metal Oxides
SO2
NO
CO
Metal Oxides React with Water• when a metal oxide dissolve in
water...
MO(s) + HOH(l) MOH(aq)
MO(s) + H2O(l) …
metal oxide + water base
Na2O(s) + H2O(l) 2 NaOH(aq)
Metal Oxides React with Water• when a metal oxide dissolve in
water...
MO(s) + HOH(l) MOH(aq)
Na2O(s) + H2O(l) 2 NaOH(aq)
The solution is BASIC
MO(s) + H2O(l) …
Non - Metal Oxides React with Water• when a non - metal oxide dissolve
in water...
SO2(s) + H2O(l) 2 H2SO3(aq)
NO(s) + H2O(l) …
The solution is ACIDIC
non - metal oxide + water acid
Metal Oxides and Non – Metal OxidesRead page 237 and do:
Metal Oxides and Non – Metal Oxides
page 93
WORKBOOK
metal oxide + water base
non - metal oxide + water acid
18
metal oxide + water base
non - metal oxide + water acid
metal oxide + water base
non - metal oxide + water acid
20
metal oxide + water base
non - metal oxide + water acid
acidbase
base
acid
Metals and Acids
• 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) react vigorously with
water and acids
• Other metals are not that reactive with acids
Metals and AcidsWhen a metal reacts with an acid, a salt and usually hydrogen gas is
produced
HA + M MA + H2
acid + metal salt + hydrogen
Metals and AcidsWhen 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
CO32-
Metal Carbonates
CaCO3
MgCO3Na2CO
3K2CO3
Carbonates and Acids
CO32-
Carbonate rocks react with acids to produce...
metal carbonate + acid salt + water + carbon
dioxide
Carbonates and Acids
CO32-
Carbonate rocks react with acids to produce...
CaCO3 + H2SO4 CaSO4 + H2O + CO2
5.2 Check Your Understanding
page 93
TEXTBOOK
•Date: Wednesday, Dec 18
5.2 SALTS QUIZ