describe the differences between elements, compounds and mixtures<br />(b) *compare the structure of simple molecular substances, e.g. methane, iodine, with those of giant<br />molecular substances, e.g. sand, diamond, graphite in order to deduce their properties<br />(c) *compare the bonding and structures of diamond and graphite in order to deduce properties such<br />as electrical conductivity, lubricating or cutting action (candidates will not be required to draw the<br />structures)<br />(d) deduce the physical and chemical properties of substances from their structures and bonding and<br />vice versa
