Topics
Understanding the following in terms of gain or loss of oxygen and loss or gain of electrons:
• Oxidation
• Reduction
• Redox
• Oxidising agent
• Reducing agent
Knowing the approximate percentages by volume of the four most abundant gases in dry air
Knowing the conditions under which iron rusts
Understanding how the rusting of iron may be prevented by barrier methods, galvanizing and sacrificial protection
Understanding how to determine the percentage by volume of oxygen in air using experiments involving the reactions of metals (e.g. iron) and non-metals (e.g. phosphorus)
Understanding how metals can be arranged in a reactivity series based on their reactions with:
• Water
• Dilute hydrochloric or sulfuric acid
Understanding how metals can be arranged in a reactivity series based on their displacement reactions between:
• Metals and metal oxides
• Metals and aqueous solutions of metal salts
Knowing the order of reactivity of these metals: potassium, sodium, lithium, calcium, magnesium, aluminium, zinc, iron, copper, silver, gold
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