This question concern the chemistry of the element Li, Na, K, Rb and Cs. In a and b case you should name the substance represented by letters. a) 'A' is the least dense of metals.
b) When metal 'B' is dropped on to water it melts into a small ball and moves rapidly around the surface. A gas, 'C', is given of and this burn with a lilac flame. A solution of 'D' is formed.
c) Write an equation for the reaction of 'B' with water.
d) What would you expect to see if solution 'D' was tested with universal indicator paper.
e) Explain why 'B' melt in to a small ball when it is dropped on to water.
f) 'E' burns in air with a yellow flame to form compound 'F'. write a word equation and balanced symbol equation for the reaction that occurs?