Redox reactions

Cards (6)

  • What changes in oxidation numbers during redox reactions?
    Oxidation numbers change
  • How does the oxidation number change when an electron is lost?
    It increases by 1
  • What happens to the oxidation number when an electron is gained?
    It decreases by 1
  • How can you determine if a redox reaction has occurred?
    • Compare oxidation numbers before and after the reaction
    • An increase indicates oxidation
    • A decrease indicates reduction
  • What types of substances typically undergo redox reactions?
    Metals and acids
  • What is an example of a redox reaction involving a metal and an acid?
    • A reaction producing a salt and hydrogen gas
    • Metal atoms lose electrons and are oxidized
    • Hydrogen ions gain electrons and are reduced