Consider a gas of O2 molecules (weight 32 g/mol). The temperature of the gas is such that rotational and translational degrees of freedom are active. When the rotational energy is increased by 6.90e-21 J per molecule by adding heat, by how much is the typical translational energy per molecule increased

Answerδh > 0explanationc₆h₆  (s)  → c₆h₆ (l)if you are changing it from a solid to a liquid, you are pretty much melting the solid. this requires heat energy. therefore, the reaction is endothermic (takes in energy); the system enthalpy increases as the reaction proceeds: δh > 0.

Ibelieve the answer is d. titaniumhope my answer has you : )

Answer    "a salt" would be the best answerexplanationsalts can be defined as ionic compounds that are neither acids nor bases. nacl is an example of a salt, and its ionic.an enzyme is an organic compound which is covalently bonded, not ionically bonded.acids are generally held together by covalent bondsan element does not need any bonds to exist

D=m/v =57.9/3 = 19.3 g/cm^3