Questions

• Answer

  M1 Ca2+ (ion) bigger/lower charge to size ratio (than Mg2+)

  Therefore

  M2 weaker attraction/bond to (O-) water

  Question

  
• Answer

  M1 The size of the ion increases from Li+ to K+

  Therefore

  M2 There is a weaker attraction to the O- in water


  Question

  
• Answer

  M1 Mg+(g) + e- + O(g)

  M2 Mg2+(g) + 2e- +O(g)

  M3 Mg2+(g) + e- + O-(g)


  Question

  Fill in the blanks

  
• M1 As AgI has some covalent character

  Therefore

  M2 Stronger forces between the bonds


  Question