Write balanced equations for the combustion of each of the following substances (molecular formulas may be obtained from Table 3-7):

(a) methane;

(b) propane;

(c) cyclohexane;

(d) ethanol;

(e) sucrose.

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Heats of Combustion [kcal mol- (kJ mol-1), Normalized to 25°C] of Various Organic Compounds Table 3-7 Compound (state) Name comb CH4 (gas) Methane -212.8 (-890.4) C,H, (gas) Ethane - 372.8 (-1559.8) CH,CH,CH3 (gas) Propane - 530.6 (-2220.0) CH3(CH2),CH3 (gas) Butane -687.4 (-2876.1) (CH3)3CH (gas) 2-Methylpropane -685.4 (-2867.7) CH3(CH,),CH, (gas) Pentane -845.2 (-3536.3) CH3(CH,),CH3 (liquid) Pentane -838.8 (-3509.5) CH3(CH2)4CH3 (gas) Hexane - 1002.5 (-4194.5) CH3(CH2)4CH3 (liquid) Hexane -995.0 (-4163.1) (liquid) Cyclohexane -936.9 (-3920.0) CH,CH,OH (gas) Ethanol -336.4 (-1407.5) CH,CH,OH (liquid) Ethanol -326.7 (-1366.9) C12H22011 (solid) Cane sugar (sucrose) -1348.2 (-5640.9) Note: Combustion products are CO2 (gas) and H30 (liquid).