IB Chemistry Transition Work 1) Work through ‘Head Start to AS Chemistry’ by David Mason ISBN: 978 1 84762 1160, available from Amazon and other booksellers for approximately £4. Sections 1 to 3, and 7 to 10 are particularly relevant to the topics covered in the first term. Make notes and answer questions to check understanding. The other sections are relevant for later topics and are worth reading through. 2) The Text book for the course is expensive (around £35) but can be ordered through the College at a discounted price when you start in September. However, if you are sure you are going to take IB Chemistry and wish to purchase it before then the details are given below: Chemistry for the IB Diploma, by Steve Owen (Cambridge University Press) ISBN: 978- 0- 521-18294-2 Homework Task / Questions Please use your Head Start book to help complete the following: 1) Draw a labelled diagram of: a. A Sodium atom. b. An oxygen atom. (Section 1 in Head Start) 2) Draw ‘dot and cross’ diagrams to represent: a. The covalent bonding in an O2 molecule. b. The ionic bonding in sodium oxide. (Section 2-3) 3) Write a balanced equation to represent the reaction between sodium and oxygen to form sodium oxide. (Section 7) 4) Calculate the ‘formula mass’ for: a. Sodium. b. Oxygen. c. Sodium oxide. (Section 1) 5) Calculate the ‘Percentage mass’ of sodium and of oxygen in sodium oxide. (Section 8) Please bring your answers to your first chemistry lesson in September.