Hydrogen bonding is most often seen see concept 2.3 (page 38) view available hint(s) hydrogen bonding is most often seen see concept 2.3 (page 38) when multiple carbon atoms are present when the bonds within the molecule are nonpolar covalent bonds in molecules whose three-dimensional shape is tetrahedral if the molecule consists of three or fewer atoms when hydrogen is covalently bonded to an electronegative atom

When hydrogen is covalently bonded to an electronegative atom

answer: the enthalpy of the overall chemical reaction is +87.88 kj or +88 kj.

according to hess's law, the overall enthalpy of a reaction is the difference between the sum of enthalpy values of all the products and the sum of enthalpy values of all the reactants.

δh(reaction) = ∑nδh(products) - ∑nδh(reactants)

δh(reaction) = [δh +δh] - [δh]

δh(reaction) = [1(-287.02) + 1(0) ] - [1(-374.9)] kj = +87.88 kj

here, δh (pcl3) = -287.02 kj, δh(cl2) = 0, δh(pcl5) = -374.9 kj

therefore, enthalpy of the overall reaction is +87.88 kj or +88 kj.

plasma is the state of matter where the substance is ionized and has no definite shape or volume. the fact of being ionized makes the substance a good electrical conductor.