Some atomic orbitals are shown as sketches of their shapes. Identify whether each orbital is $s$, $p$ or $d$.
Cadmium forms the two ions $\text{Cd}^{2+}$ and $\text{Cd}^+$. Their electronic configurations are shown below: • $[\text{Kr}]\,4d^{10}5s^1$ • $[\text{Kr}]\,4d^{10}$ Use this information to explain why cadmium is not a transition element.
Methylamine, $\text{CH}_3\text{NH}_2$, is a monodentate ligand. State what monodentate means in this context.
In aqueous methylamine, $[\text{Cd}(\text{H}_2\text{O})_6]^{2+}$ reacts to give a mixture of two octahedral isomers. equilibrium 1: $[\text{Cd}(\text{H}_2\text{O})_6]^{2+} + 4\text{CH}_3\text{NH}_2 \rightleftharpoons [\text{Cd}(\text{CH}_3\text{NH}_2)_4(\text{H}_2\text{O})_2]^{2+} + 4\text{H}_2\text{O}$, $\Delta H^\circ = -57\,\text{kJ mol}^{-1}$ Complete the three-dimensional diagrams to show the isomers of $[\text{Cd}(\text{CH}_3\text{NH}_2)_4(\text{H}_2\text{O})_2]^{2+}$. Use L to represent $\text{CH}_3\text{NH}_2$ in your diagrams.
State what the term stability constant means.
Complete the table by putting one tick ($\checkmark$) in each row to indicate how a higher temperature would change the stability constant, $K_{\text{stab}}$, and the equilibrium concentration of the cadmium complex, $[[\text{Cd}(\text{CH}_3\text{NH}_2)_4(\text{H}_2\text{O})_2]^{2+}]$, for equilibrium 1. Explain your answer.
Methylamine is a Brønsted-Lowry base. Write an equation to show how methylamine dissolves in water and produces an alkaline solution.
Write an equation for the reaction between ethanoyl chloride and methylamine.
Methylamine also reacts with propanone to make compound P as shown. Deduce the reaction type shown.