4 marksFoundation5.2.1.2 Ionic bonding5.2.1.1 Chemical bonds
AQA Trilogy 8464
Spec and skills
Paper scope: C1
Spec 5.2.1.2
Spec 5.2.1.1
Original practice question
Answer and supported method checks
Magnesium reacts with oxygen to form magnesium oxide, an ionic compound.
The electron structure of magnesium is 2,8,2 and of oxygen is 2,6.
.1
Describe what happens to the electrons when magnesium reacts with oxygen.
[2 marks]
.2
What are the charges on the ions in magnesium oxide?
[1 mark]
.3
Name the type of force that holds the ions together.
[1 mark]
3 marksFoundation5.4.2.2 Neutralisation of acids and salt production5.4.2.1 Reactions of acids with metals
AQA Trilogy 8464
Spec and skills
Paper scope: C1
Spec 5.4.2.2
Spec 5.4.2.1
Original practice question
Answer and supported method checks
Acids react with metals, bases and carbonates to make salts.
.1
Name the salt made when magnesium oxide reacts with hydrochloric acid.
[1 mark]
.2
Name the salt made when sodium hydroxide reacts with sulfuric acid.
[1 mark]
.3
Name the gas produced when calcium carbonate reacts with hydrochloric acid.
[1 mark]
4 marksFoundation5.3.1.2 Relative formula mass
AQA Trilogy 8464
Spec and skills
Paper scope: C1
Spec 5.3.1.2
Original practice question
Answer and supported method checks
Relative atomic masses (Ar): H = 1, C = 12, O = 16, Mg = 24, Cl = 35.5
.1
Calculate the relative formula mass (Mr) of water, H2O.
[1 mark]
.2
Calculate the Mr of carbon dioxide, CO2.
[1 mark]
.3
Calculate the Mr of magnesium chloride, MgCl2.
[2 marks]
3 marksFoundation5.4.1.2 The reactivity series
AQA Trilogy 8464
Spec and skills
Paper scope: C1
Spec 5.4.1.2
Original practice question
Answer and supported method checks
A student adds small pieces of four metals to dilute hydrochloric acid and to water.
Table: metal A reacts vigorously with acid and slowly with water; metal B reacts slowly with acid and not with water; metal C does not react with either; metal D reacts vigorously with water.
Metal
With dilute acid
With water
A
Vigorous fizzing
Slow bubbles
B
Slow bubbles
No reaction
C
No reaction
No reaction
D
Too dangerous to try
Vigorous fizzing, melts
.1
Use the results to put the metals in order of reactivity, most reactive first.
[1 mark]
.2
Which metal could be copper?
[1 mark]
.3
Complete the word equation: magnesium + hydrochloric acid → magnesium chloride + ______
[1 mark]
4 marksFoundation5.4.3.2 Electrolysis of molten ionic compounds5.4.3.1 The process of electrolysis
AQA Trilogy 8464
Spec and skills
Paper scope: C1
Spec 5.4.3.2
Spec 5.4.3.1
Original practice question
Answer and supported method checks
Molten zinc chloride is electrolysed using inert electrodes.
