Separating Metals From Metal Oxides

• Are most metals found in the earth as pure lumps?

  No, they are found in compounds.
• What is required to extract metals from compounds?

  More work is required to extract them.
• What often needs to be separated from metals?

  Their oxides need to be separated.
• What is the process called that separates metals from their oxides?

  It is called a reduction reaction.
• What is oxidation in terms of oxygen gain?

  Oxidation is the gain of oxygen.
• What happens to magnesium during oxidation?

  Magnesium is oxidized to form magnesium oxide.
• What is reduction in terms of oxygen loss?

  Reduction is the loss of oxygen.
• What happens to copper oxide during reduction?

  Copper oxide is reduced to copper.
• How can some metals be extracted using carbon?

  They can be extracted by reduction with carbon.
• What happens to the ore in the reduction reaction with carbon?

  The ore is reduced as oxygen is removed.
• How does the position of a metal in the reactivity series affect its extraction?

  Higher metals need more complex extraction.
• What is the extraction method for metals lower than carbon in the reactivity series?

  They can be extracted using reduction with carbon.
• What is the implication of a metal being lower than carbon in the reactivity series?

  It can be extracted using carbon reduction.
• What is the general trend for metals in terms of extraction costs?

  Higher metals are more expensive to extract.
• What is the extraction method for metals below carbon in the reactivity series?

  They can be extracted using reduction with carbon.
• What is the process of reducing iron oxide with carbon?

  Iron oxide is reduced to iron and carbon dioxide.
• What is the significance of the position of metals in the reactivity series?

  It determines the extraction method used.
• What is the role of carbon in the extraction of metals?

  Carbon acts as a reducing agent in extraction.
• What is the reaction of iron(III) oxide with carbon?

  It produces iron and carbon dioxide.
• What happens to the carbon during the reduction of iron oxide?

  Carbon is oxidized to carbon dioxide.
• How does the extraction process differ for metals above and below carbon in the reactivity series?

  Above carbon requires more complex methods.
• What is the general principle behind metal extraction using carbon?

  Carbon reduces metal oxides to metals.
• What is the outcome of reducing copper oxide with carbon?

  Copper is produced from copper oxide.
• What is the significance of the reactivity series in metal extraction?

  It helps determine extraction methods for metals.
• How does the extraction of metals relate to their position in the reactivity series?

  Higher reactivity means more complex extraction.
• What is the role of oxygen in the oxidation of metals?

  Oxygen combines with metals to form oxides.
• What is the result of the reaction between iron(III) oxide and carbon?

  Iron and carbon dioxide are produced.
• What is the process of extracting metals from their ores using carbon called?

  It is called reduction.
• How does the extraction of metals impact their economic value?

  More complex extraction increases economic costs.
• What is the relationship between metal reactivity and extraction methods?

  Higher reactivity requires more complex methods.
• What is the general trend for metals in terms of extraction complexity?

  Higher metals are more complex to extract.
• What is the significance of carbon in metal extraction?

  Carbon acts as a reducing agent in reactions.
• How does the position of metals in the reactivity series affect their extraction costs?

  Higher position means higher extraction costs.
• What is the outcome of reducing iron(III) oxide with carbon?

  Iron is produced and carbon dioxide is released.
• What is the role of carbon in the reduction of metal oxides?

  Carbon reduces metal oxides to metals.
• What is the process of extracting metals from ores using carbon called?

  It is called reduction.
• How does the extraction of metals relate to their position in the reactivity series?

  Higher reactivity means more complex extraction.
• What is the significance of the reactivity series in metal extraction?

  It helps determine extraction methods for metals.
• What is the outcome of reducing copper oxide with carbon?

  Copper is produced from copper oxide.
• What happens to the carbon during the reduction of iron oxide?

  Carbon is oxidized to carbon dioxide.