8.1 Group 2

Question 1

What makes something soluble?

Answer 1

If it’s bond are more energetically favourable with h2o than itself

Question 2

Why does solubility increase down periodic 2?

Answer 2

Atomic radius increases
Bonds with water when soluble weaken
Therefore are more energetically favourable

Question 3

Will group 2’s bonded to hydroxides be more alkali when dissolved up or down the group and why?

Answer 3

Down
Their bonds between hydroxide are weaker as atomic radius increases

Question 4

What are group 2 hydroxides used for?

Answer 4

Neutralise acidic soil
Relive stomach acid indigestion