Tuesday, 10 October 2023
Starter
What does the formula of the compound tell us?
In copper sulphate, CuSO4 there are four atoms of oxygen
and one atom of sulphur for each one of copper.
CuSO4
Cu - 1
S -
1
O - 4
How many elements and
atoms in…
KNO3
K2CO3
 The number of elements
 The number of atoms in a compound
Na3PO4
(NH4)2SO4
Tuesday, 10 October 2023
Lesson Objectives
Grade C
• State the name of a salt given the base and the
acid used to form it.
Grade B
• Be able to construct word and therefore write
symbol equations.
Grade A/A*
• Balance symbol equations.
Tuesday, 10 October 2023
Forming Salts
When an acid reacts with a base, a neutralisation reaction
occurs and produces a chemical called a salt.
acid
+
base

a salt
The name of the salt depends on the names of the reactants.
 The first part of the salt’s name comes from the base:
e.g. sodium hydroxide
 sodium…
 The second part of the salt’s name comes from the acid:
e.g. sulfuric acid

sulfate…
For example, if sodium hydroxide neutralises sulfuric acid,
the product is a salt called sodium sulfate.
Tuesday, 10 October 2023
Common Acids
Acid
HCl
Chlorides
Sulphuric
Nitric
Salts
Nitrates
Formula
H2SO4
HNO3
Sulphates
Hydrochloric
Acid
Formula
Salts
hydrochloric
HCl
chlorides
sulphuric
H2SO4
sulphates
nitric
HNO3
nitrates
Create a table
Tuesday, 10 October 2023
Naming Salts
What is a salt and how do we
name them?
METAL OXIDE
salt
chlorides
sulphates
nitrates
ACID
made from….
hydrochloric acid
sulphuric acid
nitric acid
Tuesday, 10 October 2023
Naming Salts
copper oxide
copper
zinc oxide zinc
chloride
hydrochloric acid
chloridehydrochloric acid
magnesium
magnesium
oxide
sulphate
sulphuric acid
magnesium
magnesium
oxide
nitrate nitric acid
salt
chlorides
sulphates
nitrates
made from….
hydrochloric acid
sulphuric acid
nitric acid
Tuesday, 10 October 2023
Now try naming any 5 of the following…
1
2
3
4
5
6
7
8
9
10
11
12
Magnesium
+ Hydrochloric acid 
Magnesium chloride
Lead
+ Nitric acid

Lead nitrate
Zinc
+ Nitric acid

Zinc nitrate
Copper
+ Sulphuric acid

Copper sulphate
Iron oxide
+ Nitric acid

Iron nitrate
Zinc oxide
+ Sulphuric acid

Zinc sulphate
Lead
+ HCl

Lead chloride
Copper oxide
+ Sulphuric acid

Copper sulphate
Cr2O3
+ HNO3

Chromium nitrate
SnO2
+ H2SO4

Tin sulphate
Fe2O3
+ H2SO4

Iron sulphate
NH4OH
+ HCl

Ammonium chloride
C
B
A
Tuesday, 10 October 2023
Lesson Objectives
Grade C
• State the name of a salt given the base and the
acid used to form it.
Grade B
• Be able to construct word and therefore write
symbol equations.
Grade A/A*
• Balance symbol equations.
Tuesday, 10 October 2023
Constructing equations
Zinc chloride
Ca(NO3)2
Calcium sulphate
ZnCl2
Magnesium sulphate
NaNO3
Calcium chloride
CaSO4
Calcium nitrate
MgSO4
Sodium nitrate
FeSO4
Iron sulphate
CaCl2
Tuesday, 10 October 2023
Constructing equations
Copper oxide
CuO
Zinc oxide
CuCl2
Sodium hydroxide
ZnO
Magnesium chloride
ZnSO4
Zinc sulphate
Cu(NO3)2
Copper chloride
MgCl2
Copper nitrate
NaOH
Tuesday, 10 October 2023
Word equations
• Alkali + acid
salt + water
• Base + acid
salt + water
• Metal + acid
salt + hydrogen
sodium
hydroxide
+
calcium
oxide
+
magnesium
+
hydrochloric

acid
sulphuric
acid

sodium
chloride
+
water
calcium
sulphate
+
water
+
hydrogen
magnesium
hydrochloric

acid
chlordie
Tuesday, 10 October 2023
Word equations
• Choose 8 equations write in the words and
formulas for each chosen.
Hydrogen
+
Oxygen

Water
H2
+
O2

H2O
If you get stuck….
 try something easier
 ask the person next to you
 ask me.
Handout2
Tuesday, 10 October 2023
Balancing Equations
magnesium
magnesium
hydrochloric
+

acid
chloride
Mg
+
sodium
oxide
+
Na2O
+
sodium
oxide
Na2O
2 HCl
+
hydrogen
MgCl2
+
H2
sodium
chloride
+
Water
+
H2O

hydrochloric

acid
2 HCl

2 NaCl
+
sulphuric
acid

sodium
sulphate
+
Water
+
H2SO4

Na2SO4
+
H2O
Handout2
Tuesday, 10 October 2023
Balancing Equations
magnesium
magnesium
hydrochloric
+

acid
chloride
Mg
+
sodium
oxide
+
Na2O
+
2 HCl

hydrochloric

acid
2 HCl

+
hydrogen
MgCl2
+
H2
sodium
chloride
+
Water
+
H2O
2 NaCl
Now try to balance the symbol equations for the 8 reactions you chose.
If you get stuck….
 try something easier
 ask the person next to you
 ask me.