Write equations for these reactions: sodium with oxygen; sulfur with oxygen.
Draw a dot-and-cross diagram to show the species present in $\text{Al}_2\text{O}_3$. Show only outer electrons.
The maximum oxidation state of the Period 3 elements in their oxides changes across the period. State and explain the pattern.
Complete Table 2.1 with details of how some Period 3 oxides react with $\text{H}_2\text{O}$.
Write an equation for the reaction of $\text{CH}_3\text{CN}$ with $\text{H}_2\text{O}$ under acidic conditions. $\text{CH}_3\text{CN} + \ldots\,\text{H}_2\text{O} + \ldots\,\text{H}^+ \rightarrow \ldots$
Draw the structures of the two alcohols produced in equation 1. Equation 1: $\text{C}_3\text{H}_6(g) + \text{H}_2\text{O}(g) \xrightarrow{\text{H}_3\text{PO}_4} \text{C}_3\text{H}_8\text{O}(g)$
Explain why alcohols are less acidic than water.
Explain the trend in the boiling points of the Group 16 hydrides from $\text{H}_2\text{S}$ to $\text{H}_2\text{Te}$.
Explain why the boiling point of $\text{H}_2\text{O}$ is much higher than the boiling point of $\text{H}_2\text{S}$.