Metals like potassium and sodium are stored under oil because they react __________ with the oxygen and moisture in the air.
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Practise MYP Chemistry questions on 5.11 Reactivity Series and review the explanations to check your understanding.
Use these questions for topic practice and to find ideas you want to revisit in your notes or lessons.
Metals like potassium and sodium are stored under oil because they react __________ with the oxygen and moisture in the air.
Galvanisation protects iron from rusting by coating it with zinc. How does this process function if the zinc coating is scratched?
An unknown metal reacts with dilute hydrochloric acid to produce bubbles of gas, but it does not react with cold water or steam. Where is most likely located in the reactivity series?
To protect a steel pipeline (made mostly of iron) from corrosion using sacrificial protection, which of the following metals would be UNSUITABLE to use as the sacrificial anode?
True or False: A metal that is difficult to extract from its ore is usually considered to have low reactivity because it is so stable as a compound.
endothermically
slowly
rapidly
reversibly
The zinc reacts with iron to form a new unreactive alloy.
The zinc becomes less reactive when exposed to air.
The zinc acts as a sacrificial metal because it is more reactive than iron.
The zinc acts as a physical barrier only.
Between hydrogen and copper
Between lead and hydrogen
Below gold
Above sodium
Aluminium
Silver
Zinc
Magnesium
True
False