A QUIZ on SIMPLE COMMON CHEMICAL FORMULAE for KS4 Science IGCSE/GCSE Chemistry courses

Site Meter Fill in the gaps in any order, then press CHECK at any time you want. The [boxes] disappear if your answers are correct! Character case is important! eg Na NOT NA, SO4 NOT so4 etc. Put ONLY one element symbol or one number in each box. There are slightly larger gaps than normal between the letters and numbers in the formula due to the way the software runs! EMAIL query-comment-error? 06-01-10

   2      3      4      Ag      Ba      C      Ca      Cl      Cu      Fe      H      I      K      N      Na      O      Pb      S      XXXX   
THE FORMULA FOR ....
(1) ammonia is
(2) barium chloride is
(3) barium sulphate is
(4) calcium carbonate is
(5) calcium oxide is
(6) carbon dioxide is
(7) copper carbonate is
(8) copper sulphate is
(9) hydrochloric acid
(10) iron(III) oxide is
(11) lead(II) oxide is
(12) methane is
(13) potassium nitrate is
(14) silver nitrate is
(15) sodium carbonate is
(16) sodium chloride is
(17) sodium hydroxide is
(18) sodium sulphate is
(19) sulphuric acid is
(20) water is
(21) calcium hydroxide is ( )
(22) potassium iodide is

ignore - for future expansion

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