Cards (40)

    • More reactive metals require energy-intensive extraction methods like electrolysis
    • Which metals are commonly extracted using reduction with carbon?
      Iron, copper, zinc
    • Steps in the displacement reaction method for extracting iron:
      1️⃣ React iron oxide with carbon
      2️⃣ Heat the mixture
      3️⃣ Carbon reduces iron oxide
      4️⃣ Iron is produced
    • The cost of reduction with carbon is low
    • Metal extraction refers to obtaining a metal from its ore.

      True
    • Which extraction method is used for highly reactive metals like aluminum?
      Electrolysis
    • What is the chemical equation for the extraction of iron from iron oxide using carbon?
      Fe2O3+Fe_{2}O_{3} +3C2Fe+ 3C \rightarrow 2Fe +3CO 3CO
    • Arrange the key steps in the electrolysis process:
      1️⃣ Electrolyte preparation
      2️⃣ Electrode setup
      3️⃣ Current application
      4️⃣ Metal deposition
    • The choice of metal extraction technique depends on balancing the reactivity of the metal, ore availability, and overall cost.

      True
    • What is the term for obtaining a metal from its ore?
      Metal extraction
    • Biological extraction uses microorganisms for extracting metals.

      True
    • Carbon is more reactive than iron in the displacement reaction with iron oxide.

      True
    • Electrolysis is effective for extracting highly reactive metals like sodium and aluminum.
      True
    • Match the metal extraction method with examples of metals extracted:
      Reduction with carbon ↔️ Iron, copper, zinc
      Electrolysis ↔️ Sodium, magnesium, aluminum
      Biological extraction ↔️ Copper, gold, cobalt
    • Rarer ores may require more complex and costly extraction processes.

      True
    • Electrolysis is used for extracting highly reactive metals like sodium
    • In the displacement reaction for iron, carbon is more reactive than iron
    • Biological extraction is commonly used for metals with medium reactivity
    • Arrange the main metal extraction methods by increasing reactivity of the metal:
      1️⃣ Reduction with carbon
      2️⃣ Biological extraction
      3️⃣ Electrolysis
    • Biological extraction, also known as bioleaching, uses microorganisms to extract metals from their ores
    • In the displacement reaction, carbon is more reactive than iron
    • At which electrode in electrolysis do metal ions gain electrons and deposit as pure metal?
      Cathode
    • What are the three main factors that influence the choice of metal extraction method?
      Reactivity, abundance, cost
    • Reduction with carbon is suitable for extracting metals with low to medium reactivity
    • The displacement reaction method uses a more reactive metal to displace a less reactive metal from its ore
    • Electrolysis involves passing an electric current through a molten compound or solution containing the metal ions
    • What is metal extraction defined as?
      Obtaining a metal from its ore
    • Match the extraction method with its characteristics:
      Reduction with carbon ↔️ Low reactivity, common ore, low cost
      Electrolysis ↔️ High reactivity, rare ore, high cost
      Biological extraction ↔️ Medium reactivity, common ore, medium cost
    • Biological extraction is also known as bioleaching.
      True
    • Which metals are suitable for extraction by the displacement reaction method?
      Iron, copper, zinc
    • The displacement reaction method is suitable for extracting metals like iron, copper, and zinc
    • Reduction with carbon uses carbon (e.g., coke) at high temperatures to reduce metal oxide ores.

      True
    • In the displacement reaction method, a more reactive metal displaces a less reactive metal from its compound.
      True
    • Electrolysis involves passing an electric current through a molten compound or solution to extract metals.

      True
    • One disadvantage of electrolysis is that it requires high energy
    • More reactive metals require more energy-intensive extraction methods like electrolysis
    • Rank the main metal extraction methods based on their energy usage, from lowest to highest:
      1️⃣ Reduction with carbon
      2️⃣ Displacement reaction
      3️⃣ Biological extraction
      4️⃣ Electrolysis
    • What are the products of reacting iron oxide (Fe2O3Fe_{2}O_{3}) with carbon (CC) in the displacement reaction?

      Iron and carbon monoxide
    • What type of electrode is negatively charged in electrolysis?
      Cathode
    • Biological extraction is a medium-cost, medium-energy option for moderately reactive metals