Chemistry paper 1

Subdecks (5)

Cards (101)

  • independant variable: what you change or select
    dependant variable: what you measure
    control variable: what you keep the same
  • what word describes how noble gases exist as single molecules?
    monatomic
  • what word describes how halogens exist as pairs?
    diatomic
  • if the metal is more reactive than hydrogen in electrolysis, what will form at the cathode?
    hydrogen
  • what forms at the anode if there is no halide present or the solution is dilute?
    oxygen
  • does the cathode give or take electrons?
    gives
  • does the anode give or take electrons?
    takes
  • what elements form at the cathode?
    metal or hydrogen
  • what element forms at anode?
    a non-metal or oxygen
  • what do you mix with aluminium oxide to lower its melting point?
    cryolite