Answer:
John collected taxes, modernised the government and exerted his power over the Church, Scotland and Ireland. This made him unpopular with the barons. In 1201-2, helped by King Philip of France, the lords of Lusignan, a powerful alliance of French nobles, rebelled against John. John mounted a huge campaign to re-conquer Normandy, but was badly defeated at the Battle of Bouvines (1214). John was forced to pay the huge sum of 20,000 marks and concede some lands in France in order for King Philip to recognise him as the heir to Richard I.
Answer: BaI
{2}
⋅
4
H
{2}
O
any number in {} is small
Explanation: The idea here is that you need to use the number of moles of anhydrous barium iodide, BaI
{2}
, and of water, H {2} O
, to find the mole ratio that exists between the anhydrous salt and its water of hydration in the hydrate.
