1. 5.2 SALTS

2. 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

3. 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

4. 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

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

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

7. Acid – Base Neutralization
WORKBOOK
page 91

8. acid
salt
acid
acid
base
salt
acid
salt
base
salt
acid
acid
acid
acid
acid
base
salt
acid
base
base
base
salt

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

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

13. 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

14. 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

15. 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

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

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

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

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

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

21. 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)

22. 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

23. 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

24. 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)

25. Metals and Acids
Read page 238 and do:

26. Carbonates and Acids
Metal Carbonates
CO32-
CaCO3
MgCO3
Na2CO3
K2CO3

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

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

29. 5.2 Check Your Understanding
TEXTBOOK
page 93

30. 5.2 SALTS QUIZ
Date: Wednesday, Dec 18