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A student placed a piece of metal P in a test tube containing excess dilute sulfuric acid - Edexcel - GCSE Chemistry - Question 9 - 2018 - Paper 1
Question 9
A student placed a piece of metal P in a test tube containing excess dilute sulfuric acid. The student repeated this with three other metals, Q, R and S. All the pie... show full transcript
Worked Solution & Example Answer:A student placed a piece of metal P in a test tube containing excess dilute sulfuric acid - Edexcel - GCSE Chemistry - Question 9 - 2018 - Paper 1
Step 1
Put the four metals in order of reactivity from the least reactive to the most reactive.
Answer
To determine the order of reactivity based on the observations:
- Metal S produced bubbles very quickly with no metal remaining, indicating it is the most reactive.
- Metal Q produced bubbles quickly and no metal remained, placing it behind S in reactivity.
- Metal R produced bubbles slowly, with no metal remaining, making it less reactive than Q.
- Metal P produced bubbles very slowly and some metal remained, indicating it is the least reactive.
Thus, the order of reactivity from least reactive to most reactive is: P, R, Q, S.