Skip to main content
Back

Alkaline Earth Metals Reactions quiz

Control buttons has been changed to "navigation" mode.
1/15

Terms in this set (15)

  • Which group in the periodic table do alkaline earth metals belong to?
    Alkaline earth metals belong to group 2a of the periodic table.
  • Name three heavy alkaline earth metals.
    The heavy alkaline earth metals are calcium, strontium, and barium.
  • How do alkaline earth metals generally react with oxygen?
    They act as strong reducing agents and form metal oxides by reducing atmospheric oxygen.
  • What is the product when barium reacts with oxygen gas?
    Barium reacts with oxygen to form barium peroxide (BaO2), not just a simple metal oxide.
  • What is the oxidation state of oxygen in barium peroxide (BaO2)?
    In BaO2, oxygen has an oxidation state of -1, making it a peroxide.
  • Which alkaline earth metal forms a peroxide with oxygen?
    Barium is the only alkaline earth metal that forms a peroxide (BaO2) with oxygen.
  • How do heavy alkaline earth metals react with water?
    Heavy alkaline earth metals (calcium, strontium, barium) reduce water to form elemental hydrogen.
  • Why do beryllium and magnesium not react with water like the heavier group 2a elements?
    Beryllium and magnesium form an oxide coating with water, preventing further reaction.
  • What is produced when alkaline earth metals react with diatomic halogens?
    They react to form ionic halides, using the crisscross method to balance charges.
  • What is the basicity of alkaline earth metal oxides?
    All alkaline earth metal oxides are basic except for beryllium oxide, which is amphoteric.
  • What does it mean for beryllium oxide to be amphoteric?
    Amphoteric means it can behave as both an acid and a base depending on what it reacts with.
  • What ion is produced when barium oxide reacts with water?
    Barium oxide reacts with water to produce barium ions and two hydroxide ions, making the solution basic.
  • What happens to carbonate compounds of alkaline earth metals upon heating?
    They undergo thermal decomposition to form the metal oxide and carbon dioxide gas.
  • What is the environmental significance of calcium oxide formed from calcium carbonate?
    Calcium oxide can further react to form limestone, which is important in environmental sciences.
  • Why do alkaline earth metals have more types of reactions than alkali metals?
    The addition of an extra valence electron allows alkaline earth metals to participate in more types of reactions.