Reaction 1 gives $\text{Ca(NO}_3)_2$ plus one further product. Name the other product.
Write an equation for the thermal decomposition of $\text{Ca(NO}_3)_2(s)$.
State the pattern in the thermal stability of the Group 2 nitrates down the group.
In reaction 3, excess $\text{CO}_2$ is bubbled through water containing $\text{CaCO}_3$. A solution of $\text{Ca(HCO}_3)_2(aq)$ is formed. Construct an equation for reaction 3.
Describe the use of $\text{Ca(OH)}_2$ in agriculture.
Describe the way $sp$ hybridised orbitals are formed.
Sketch a diagram to show how two $sp$ hybrid orbitals can make a sigma $(\sigma)$ bond.
Reaction 5 may be used to make $\text{NH}_3$. $\text{CaCN}_2 + 3\text{H}_2\text{O} \rightarrow \text{CaCO}_3 + 2\text{NH}_3$ Calculate the smallest mass, in tonnes, of calcium cyanamide, $\text{CaCN}_2$, needed to produce $1.50 \times 10^6$ tonnes of $\text{NH}_3$. Show your working. $1$ tonne $= 1.00 \times 10^6\,\text{g}$.
Draw the structures of the organic products formed in the reactions below. $\text{CH}_3\text{CH}_2\text{Br}$ is treated with $\text{NaCN}$ dissolved in ethanol. The product from this reaction is then heated under reflux with $\text{H}_2\text{SO}_4(aq)$. A carbonyl compound is treated with $\text{NaCN}$ and $\text{HCN}$.