Figure 5 shows part of the reactivity series of metals - Edexcel - GCSE Chemistry - Question 3 - 2023 - Paper 1
Question 3
Figure 5 shows part of the reactivity series of metals.
calcium
magnesium
aluminium
zinc
iron
copper
silver
gold
increasing reactivity
Figure 5
(a) Which metal r... show full transcript
Worked Solution & Example Answer:Figure 5 shows part of the reactivity series of metals - Edexcel - GCSE Chemistry - Question 3 - 2023 - Paper 1
Step 1
Which metal reacts when added to cold water?
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Answer
From the reactivity series illustrated in Figure 5, calcium is the most reactive metal listed. Therefore, the metal that reacts when added to cold water is calcium (A).
Step 2
What are the observations for magnesium?
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Answer
Although the observations for magnesium are not provided in the text, it is commonly known that magnesium reacts vigorously with dilute hydrochloric acid, producing hydrogen gas and forming magnesium chloride.
Step 3
What are the observations for zinc?
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Answer
The observation for zinc is that it produces bubbles at a steady rate when added to dilute hydrochloric acid, indicating a reaction is occurring and hydrogen gas is being released.
Step 4
What are the observations for iron?
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The observation for iron is that the test tube feels slightly warm, suggesting a less vigorous reaction compared to zinc.
Step 5
What are the observations for copper?
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Answer
The observation for copper is no reaction, indicating that copper does not react with dilute hydrochloric acid.
