Metals are extracted from rocks found in the Earth’s crust - Edexcel - GCSE Chemistry - Question 2 - 2014 - Paper 1
Question 2
Metals are extracted from rocks found in the Earth’s crust.
Complete the sentence by putting a cross (X) in the box next to your answer.
Rocks from which metals ar... show full transcript
Worked Solution & Example Answer:Metals are extracted from rocks found in the Earth’s crust - Edexcel - GCSE Chemistry - Question 2 - 2014 - Paper 1
Step 1
Complete the sentence:
Rocks from which metals are extracted are called
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Answer
C. Ores. Ores are naturally occurring solid materials from which a metal or valuable mineral can be extracted.
Step 2
State two reasons why copper is used as the wire in electric cables.
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Answer
Copper has excellent electrical conductivity, allowing efficient transmission of electrical current.
Copper is malleable and ductile, meaning it can be easily shaped and drawn into wires without breaking.
