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By definition, ΔH°_rxn = Σ ΔH°_f (products) − Σ ΔH°_f (reactants).The enthalpy of combustion is the same as the enthalpy of reaction in this case. From Table 10, we can get t...

The particles in a gas are widely spaced and move around freely. This means they will move to fit into any space but in liquids and gases the particles are more closely packed so cannot be compressed.

In graphite, carbon atoms are in layers which slide over each other. Whereas in graphene, there is only a single layer of carbon atoms.

Similarities Doesn't conduct electricity (only when the ionic is in solid) and covalent always (no charged particles) Many dissolve in water Differences Ionic substances loose or gain and electron to beco...

First we need to construct the equation of the combustion: C2H5OH(l) + 3O2(g) --> 2CO2(g) + 3H2O(l)Use aid of structural formulaLeft hand side (endothermic - requires energy):5(413) + 347 + 358 + 464 +...