1. Unreactive metals are found as uncombined metals in the Earth’s crust - Edexcel - GCSE Chemistry - Question 1 - 2012 - Paper 1
Question 1
1. Unreactive metals are found as uncombined metals in the Earth’s crust.
Which of the following metals is found uncombined in the Earth’s?
Put a cross (X) in the bo... show full transcript
Worked Solution & Example Answer:1. Unreactive metals are found as uncombined metals in the Earth’s crust - Edexcel - GCSE Chemistry - Question 1 - 2012 - Paper 1
Step 1
a) Which of the following metals is found uncombined in the Earth’s crust?
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Answer
The correct answer is A: gold. Gold is known for its lack of reactivity and is often found in its native form.
Step 2
b)(i) Complete the word equation for the reaction.
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Answer
The completed word equation is:
iron oxide + carbon → carbon dioxide + iron.
Step 3
b)(ii) State what is meant by reduced.
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Answer
In this context, 'reduced' refers to the process of losing oxygen or gaining electrons. Specifically, it means the metal oxide is converted to a metal by the removal of oxygen.
