Metals and their uses

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  • Created by: Busayoxo
  • Created on: 21-12-15 16:13

1. Why are alloys stronger than pure metals?

  • Alloys are less dense compared to pure metals
  • Some metals in the alloy are stonger than others compared to a pure metal
  • The metals are different sizes and therefore the layers cannot slide over each other
  • A pure metal is unreactive
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Other questions in this quiz

2. What can be obtained from solutions of copper salts by electrolysis or by displacement using scrap iron?

  • Copper
  • Plants
  • Iron
  • Bacteria

3. What is a specific property of stainless steels?

  • They are easy to bend
  • They are soft
  • They are resistant to corrosion
  • They are hard

4. What is the defintion of an alloy?

  • A mixture of carbon and iron
  • A mixture of metals
  • The incomplete breakdown of a carbon
  • The breakdown of a substance using heat

5. Which of the following is NOT a reason why we should recycle metals

  • Expensive since they cannot conduct electricity
  • Extracting them uses limited resources
  • Expensive in terms energy
  • Expensive in terms of the effects on the enviroment

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