(a)[1]
Identify gas X.
(b(i))[2]
What does the term hydrocarbon mean?
(b(ii))[2]
Complete the word equation for this reaction. octane + ............ → carbon dioxide + ............
(b(iii))[2]
The amount of carbon dioxide in the atmosphere is rising. Explain why this is a global concern.
(b(iv))[1]
Explain why carbon monoxide is found in the exhaust gases.
(b(v))[2]
Complete the table to work out the relative molecular mass of octane, $\text{C}_8\text{H}_{18}$. Then determine the relative molecular mass.
(c(i))[1]
How does the boiling point of alkanes change as the number of carbon atoms increases?
(c(ii))[2]
Which alkane in the table is a liquid at room temperature (20 ^{\circ}C)? Explain your answer.
(c(iii))[1]
Draw the structure of methane with all atoms and all bonds shown.