GENERAL QUESTIONS VIII 265- When an element forms a series of oxy-acids, what rule seems
to hold connecting the valence with the acid strength? - Compare the affinity of sulphur dioxide and sulphur trioxide
for water, giving whatever data you can find. Make a similar
comparison of C1 2 O and C1 2 O 7 , N 2 O 3 and N 2 OB. Can any general
rule be stated to cover these cases?