Age 16 to 18 Challenge Level:
You may well find this problem difficult, as it requires three
dimensional visualisation of two dimensional images. If you cannot
manage this in your head, why not try:
-Using a free chemical drawing program, such as 'Chemsketch' to
draw and rotate the molecules.
-Using a modelling kit to construct the molecules, so that you can
rotate them to see if they can be superimposed.
-Try using your hands! This may prove difficult for molecules with