Question 1

Suggest valence structures for the following:

i) AlH4

ii) AlCl3

iii) AlF63-

Question 2

Aluminium is a very reactive element, yet it is used to make saucepans in which it comes into contact with a number of reactive materials. Explain.

Question 3

When Na2CO3 is added to Al(NO3)3 solution, Al(OH)3 precipitates. Explain.

Question 4

0.201g of aluminium chloride occupy 18.1cm3 at 15oC, 100.525kPa. Calculate the observed mass and denote the structure.

Question 5

Aluminium will not react with concentrated nitric acid but will react with dilute nitric acid. Explain. Show the reactions of the processes.

Question 6

Question 7

Question 8

Question 9

Question 10