GCSE Edexcel Chemistry Corrosion & Its Prevention: Iron can be extracted from a nat

Question

Iron can be extracted from a naturally occurring substance called haematite.

State the name given to the naturally occurring substances from which metals are extracted.

(1)

In the extraction of iron, iron oxide is heated with carbon to form iron.
A gas is also formed.

Write the word equation for this reaction.

(2)

The table shows information about iron and two alloy steels.

| metallic substance | density / kg m³ | relative cost per tonne | relative strength | resistance to rusting |
|--------------------|------------------|-------------------------|--------------------|-----------------------|
| iron               | 7850             | low                     | low                | high                  |
| high speed steel   | 7850             | very high               | very high          | high                  |
| stainless steel    | 7480 - 8000      | very high               | very high          | high                  |

Use the information from the table to suggest reasons why iron is converted to these alloy steels.

(2)

Iron can be extracted from a naturally occurring substance called haematite - Edexcel - GCSE Chemistry - Question 6 - 2015 - Paper 1

Worked Solution & Example Answer:Iron can be extracted from a naturally occurring substance called haematite - Edexcel - GCSE Chemistry - Question 6 - 2015 - Paper 1

State the name given to the naturally occurring substances from which metals are extracted.

Write the word equation for this reaction.

Use the information from the table to suggest reasons why iron is converted to these alloy steels.

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