Extraction of Metals

• What is the main topic of the video?

  Extraction of metals using carbon and identifying oxidation and reduction.
• How are unreactive metals like gold found in the Earth?

  • Found as the metal itself
  • Do not easily react with other elements
• What is the challenge in extracting metals from their compounds?

  Extracting the metal from compounds such as metal oxides.
• What happens when a more reactive element interacts with a less reactive element in a compound?

  • The more reactive element displaces the less reactive element
  • This process is known as displacement
• What is the reactivity series?

  A list that orders elements from most reactive to least reactive.
• How does magnesium interact with iron oxide?

  Magnesium displaces iron from iron oxide, producing magnesium oxide and iron.
• What is reduction in terms of oxygen?

  Reduction is the process of losing oxygen.
• What happens to magnesium and iron in the reaction with iron oxide?

  Iron is reduced (loses oxygen) and magnesium is oxidized (gains oxygen).
• Why is carbon used in metal extraction instead of more reactive elements?

  • Carbon is extremely cheap
  • More reactive elements are often expensive
• What is the chemical equation for the reaction between carbon and iron oxide?

  Carbon + Iron oxide → Carbon dioxide + Iron.
• What happens to iron and carbon in the reaction between carbon and iron oxide?

  Iron is reduced (loses oxygen) and carbon is oxidized (gains oxygen).
• What is a blast furnace used for?

  • Extracting iron from iron ore
  • Involves complex reactions
• What is the outcome of the first reaction involving magnesium?

  Magnesium is reduced (loses oxygen) and lithium is oxidized (gains oxygen).
• Which reaction is impossible according to the reactivity series?

  Reaction two, because zinc cannot reduce calcium.
• What occurs in the third reaction involving copper?

  Copper is reduced (loses oxygen) and carbon is oxidized (gains oxygen).
• What should you be able to do by the end of the video?

  • Describe how certain metals can be extracted using carbon
  • Identify substances that are oxidized or reduced in terms of gain or loss of oxygen