3B - Group 2 |
1) Write balanced chemical reactions, including state symbols for the following:
a) Magnesium burning in air [2]
b) Calcium in water [2]
c) Magnesium oxide and hydrochloric acid [2]
d) Calcium oxide and water [2]
e) Action of heat on calcium carbonate [2]
2) For 1 (a) - (d) of the reactions above state any observations [6]
a) Magnesium burning in air [2]
b) Calcium in water [2]
c) Magnesium oxide and hydrochloric acid [1]
d) Calcium oxide and water [1]
3) State and explain the trends in pH of the Group 2 hydroxides [3]
4) State the trends in the decomposition of the Group 2 carbonates [1]