(a(i))[1]
Write an equation for the change that represents the first ionisation energy of magnesium, and include state symbols.
(a(ii))[1]
Write an equation for the reaction between strontium and cold water, and include state symbols.
(a(iii))[1]
Describe and explain the trend in reactivity seen when these Group 2 metals react with cold water.
(b(i))[1]
The Group 2 metal nitrates decompose on heating. Describe fully what is observed when anhydrous calcium nitrate is heated in a test-tube and decomposition takes place.
(b(ii))[1]
Write an equation for the decomposition of calcium nitrate.
(b(iii))[3]
Describe and explain the change in thermal stability of the Group 2 metal nitrates down the group.
(c)[4]
Describe and explain the change in the solubility of the Group 2 metal sulfates down the group.