From the reaction C10H8(s) + 12O2(g) = 10CO2(g) + 4H2O(l) ΔrH° = –5153.0 kJ mol–1 and the enthalpies of formation of CO2 and H2O (–393.5 kJ mol–1 and –285.8 kJ mol–1, respectively) calculate the enthalpy of formation of naphthalene (C10H8).

away from the curb

explanation:

the wheels would then hit the curb if it started to rolling, decreasing the chance of an accident.

the density of gold = 19.3 g/cm3

the relation between density and mass and volume is

density = mass / volume

given :

mass of gold = 13 g

density = 13g / volume = 19.3

volume = 13 /19.3 = 0.67 cm^3

thus volume of gold nugget = 0.67 cm^3

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