(a(i))[1]
Calculate the percentage by volume of nitrogen in the exhaust gases.
(a(ii))[1]
Which gas in the table appears in the smallest percentage by volume?
(b(i))[1]
Give one harmful effect of oxides of nitrogen on health.
(b(ii))[2]
Balance the equation for the reaction between nitrogen dioxide and sodium hydroxide.\n\n$\text{NO}_2 + \text{NaOH} \rightarrow \text{NaNO}_3 + \text{NaNO}_2 + \text{H}_2\text{O}$
(b(iii))[1]
State the name of the salt whose formula is $\text{NaNO}_3$.
(c(i))[1]
saturated compound
(c(ii))[2]
hydrocarbon compound
(d)[1]
The table shows the composition of a sample of dry natural gas. Calculate the percentage by volume of hydrocarbons in the dry natural gas sample.