Skip to main content
Back

Oxides, Peroxides, and Superoxides quiz

Control buttons has been changed to "navigation" mode.
1/10

Terms in this set (10)

  • What is hypothesized to be the early source of free oxygen in Earth's atmosphere?
    Photosynthetic organisms, such as cyanobacteria, are hypothesized to be the early source of free oxygen in Earth's atmosphere.
  • What is the '1221' rule in relation to oxides, peroxides, and superoxides?
    The '1221' rule helps remember the composition of oxides (O2⁻²), peroxides (O2⁻²), and superoxides (O2⁻) based on the number of oxygen atoms and their charge.
  • Which group 1A metals form superoxides?
    Potassium, rubidium, and cesium form superoxides.
  • Why do group 2A metals not typically form superoxides?
    Group 2A metals do not form superoxides under normal conditions due to their chemical properties.
  • What compounds do group 1A metals form with oxygen?
    Group 1A metals can form oxides, peroxides, and superoxides with oxygen.
  • What is the chemical formula for a peroxide compound?
    The chemical formula for a peroxide compound is M2O2, where M represents the metal ion.
  • What memory tool can help recall which metals form peroxides?
    The phrase 'peroxides are bananas' helps recall that barium and sodium form peroxides.
  • What is the charge on the oxygen in a superoxide?
    In a superoxide, the oxygen has a charge of O2⁻.
  • What is the chemical formula for an oxide compound?
    The chemical formula for an oxide compound is M2O, where M represents the metal ion.
  • What is the chemical formula for a superoxide compound?
    The chemical formula for a superoxide compound is MOO2, where M represents the metal ion.