–(c) Write
an equation for the reaction that occurred. [1]
–
–(d) State two changes that would be observed
inside the tube as it was heated. [2]
3. MS05/A2. The percentage composition by mass of a hydrocarbon
is C = 85.6 % and H = 14.4 %.
–(a) Calculate the empirical formula of the hydrocarbon. [2]