Write chemical equations for the combustion reaction of the following hydrocarbons:
$(i)$ Pentene
$(ii)$ Hexyne
$(iii)$ Toluene

(N/A) Combustion is the reaction of a hydrocarbon with oxygen to produce carbon dioxide,water,and heat.
$(i)$ $2C_{5}H_{10(g)} + 15O_{2(g)} \rightarrow 10CO_{2(g)} + 10H_{2}O_{(g)} + \text{Heat}$
$(ii)$ $2C_{6}H_{10(g)} + 17O_{2(g)} \rightarrow 12CO_{2(g)} + 10H_{2}O_{(g)} + \text{Heat}$
$(iii)$ $C_{7}H_{8(l)} + 9O_{2(g)} \rightarrow 7CO_{2(g)} + 4H_{2}O_{(g)} + \text{Heat}$