(a(i))[1]
State which experiment has the greatest temperature change.
(a(ii))[2]
Complete the symbol equation. $\text{Zn} + \ldots\text{HCl} \rightarrow \text{ZnCl}_2 + \ldots$
(a(iii))[2]
Complete Fig. 7.1 by adding labels for: • the vertical axis • the reactants • the products.
(b)[2]
Name the changes of state marked G and H. G H