(a(i))[1]
In box A, sketch the particle arrangement for a solid.
(a(ii))[1]
In box C, sketch the particle arrangement for a gas.
(b)[2]
For each arrow in Fig. 4.2, write the correct name of the change of state underneath it.
(c)[3]
State and explain what happens to the water, making use of your molecular ideas in your response.