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 are extracted are called A alloys B elements C ores D polymers (b) Copper is used as the wire in electric cables. State two reasons why copper is used as wire in electric cables.

Photo AI

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

96%

114 rated

Answer

Metals are extracted from rocks known as 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 wire in electric cables.

99%

104 rated

Answer

Good Electrical Conductivity: Copper has very high electrical conductivity, making it an efficient conductor for electricity, which helps minimize energy loss.
Ductility and Malleability: Copper is highly ductile, allowing it to be drawn into thin wires without breaking, and malleable, enabling it to be shaped easily for various applications.

Join the GCSE students using SimpleStudy...

97% of Students

Report Improved Results

98% of Students

Recommend to friends

100,000+

Students Supported

1 Million+

Questions answered

;