11 UCLES 2004 0620/03/M/J/04 For Examiner’s Use 7 Chemists use the concept of the mole to calculate the amounts of chemicals involved in a reaction. (a) Define mole.…
UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS General Certificate of Education Ordinary Level GEOGRAPHY Paper 1 INSERT 2217/11 May/June 2010 1 hour 45 minutes READ THESE…