Give and explain 2 of the anomalous properties of ice caused by hydrogen bonding

Compared to water ice is less dense this is due to hydrogen bonds in the open lattice holding the H2O molecules apart whereas in liquid form the hydrogen bonds break allowing the molecules of water to be closer together .
Ice also has a relatively high freezing and boiling point due to its hydrogen bonds as they’re stronger than Van der Waals forces therefore more energy is needed to break the hydrogen bonds resulting in higher freezing and boiling points.

MT

Related Chemistry A Level answers

All answers ▸

Draw an example using a diagram of Carbon, three "Y" substrates and an "L" indicating any leaving group the Sn1 nucleophilic substitution reaction. (3 marks) Which step is fastest (1 mark).


Given the reaction: H2SO4 + NaOH --> ? + H2O. (a). Work out the salt produced (?) and (b). calculate the pH of the remaining solution when 1.2 g of NaOH and 4.41 g of H2SO4 were added in a 500 ml solution. Of the unreacted H2SO4 95% dissociated.


Can you explain Le Chatelier's Principle?


Order the relative base strength of phenyl amine, methyl amine and methylphenyl amine and outline your reasoning.