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Alloys As Useful Materials (chemistry Only) (GCSE Chemistry)

The following is a GCSE Chemistry test covering 'Alloys As Useful Materials (chemistry Only)' from the broader topic Using Resources. The test is geared towards the AQA exam board style syllabus.
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Galvanizing is a method to protect iron or steel from rusting. What does galvanizing involve?
An alloy contains 92.5% iron and 7.5% carbon by mass. What mass of carbon is in 2.0 kg of this alloy?
Which of the following is a key environmental benefit of recycling metal alloys rather than extracting new metal from ore?
Why are alloys generally used in place of pure metals for tools such as hammers and chisels?
Why is a steel tool that is heat-treated (quenched and tempered) often stronger than the original steel?
Which protective method works by sacrificial protection for steel structures like pipelines?
Which of these is a disadvantage of using an alloy instead of a pure metal for recycling?
Which of these is an example of a substitutional alloy?
Which of the following is a common use of bronze historically and today because of its alloy properties?
Solder is a low-melting alloy used to join electrical components. Which statement about solder is correct?
Why does adding zinc to copper to make brass change the colour compared with pure copper?