Describe the visible appearance of zinc.
Zinc oxide may be produced from zinc by heating it in air. Construct the equation for this reaction.
Which compound could be used to turn zinc oxide into zinc nitrate?
When zinc nitrate is heated in a fume cupboard, this reaction occurs: $\text{2Zn(NO}_3\text{)}_2(s) \rightarrow \text{2ZnO}(s) + \text{4NO}_2(g) + \text{O}_2(g)$. Suggest why the heating is carried out in a fume cupboard.
Calculate how many moles of zinc nitrate are present in $3.78\,g$ of zinc nitrate. [$A_r$: Zn, $65$; N, $14$; O, $16$]
Using the reaction equation and your answer to (b)(ii), work out the volume of each gas formed when $3.78\,g$ of zinc nitrate is heated. [$1$ mole of a gas occupies a volume of $24\,000\,\text{cm}^3$ at room temperature and pressure.]