Fill in the table to show the bonding in the elements and the formulae of their oxides and chlorides.
Complete the ‘dot-and-cross’ diagram to show how bonding occurs in a molecule of $\text{SCl}_2$. Show only the outer electrons.
Complete and label fully the reaction pathway diagram for the reaction between $\text{S}_2\text{Cl}_2(l)$ and $\text{Cl}_2(g)$. Add labels for activation energy, $E_a$, and the enthalpy change of the forward reaction, $\Delta H$. Reaction: $\text{S}_2\text{Cl}_2(l) + \text{Cl}_2(g) \rightleftharpoons 2\text{SCl}_2(l)$, $\Delta H = -40.6\,\text{kJ mol}^{-1}$.
$\text{SCl}_2$ is produced in the reaction below. $\text{S}_2\text{Cl}_2(l) + \text{Cl}_2(g) \rightleftharpoons 2\text{SCl}_2(l) \qquad \Delta H = -40.6\,\text{kJ mol}^{-1}$
On the axes, sketch how the melting point of the elements Na to S changes.
Give three statements to account for your sketch.
Write the equation for the reaction between $\text{P}_4\text{O}_{10}$ and water.
When fossil fuels that contain sulfur are burnt, $\text{SO}_2$ may be released into the atmosphere. State and explain one environmental effect of releasing $\text{SO}_2$ into the atmosphere.
The elements in the third period generally show an increase in first ionisation energies from left to right. Identify two consecutive pairs of elements in the third period that do not fit this trend. For each pair, explain why the change in ionisation energy does not fit the trend. The Data Booklet may help you answer this question.