1. How are most metals extracted by their ores?
- Using a chemical reaction
- Using heat the thermally decompose it?
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2. What is a metal ore?
- A rock which contains enough metals which is worth the metal being extracted
- A rock which contains a mixture of three metals or more
- A rock with little or no ore
- A metal block which contains diamonds throughout it
3. The two main chemical reactions are called?
- Thermal decomposition & Reduction
- Reduction and Electrolysis
- Magnification & Electrolysis
- Thermal decomposition & Magnification
4. Reduction can only happen to certain metals in the reactivity series because...
- Some create dangerous chemical reactions
- Carbon can only take the oxygen away from metals which are less reactive than carbon itself
- Carbon can only take the oxygen away from metals which are more reactive than carbon itself
5. What from is the metal normally in?
- An oxide of the metal
- Pure in form
- In a mixture on other metals