04 Since oxygen is significantly more electronegative than hydrogen, oxygen atoms have a much stronger attraction to shared electrons than hydrogen atoms have. This unequal sharing of electrons and bent shape results in a polar molecule. The oxygen
end of the molecule has a slightly negative charge while the hydrogen ends of the molecule have a shortly positive charge. The composition and polar covalent nature of water allow water molecules to form ————with
————-

? you expect us to answer this? ? this is your schoolwork, i don't think we can with this, i think it would considering being

the number of valence electrons for each molecule or ion is shown beneath the structure. remember hydrogen will not have more than two electrons. this hydrogen is part of a covalent bond (sharing two electrons). a double bond here would cause hydrogen to share four electrons with phosphorus.

definition

                    entropy is a measure of the randomness or the extent of disorder of a chemical process.

                      enthalpy is a measure of the heat change of a reaction occurring at a constant pressure.

measurement units:

                        entropy is measured in joule per kelvin (jk⁻¹)   whereas enthalpy is measured in joule per mole (jmol⁻¹)

requirements:

                            entropy has no requirements or limits, and its change is measured by the division between the heat change of the chemical process and the temperature.

                              in contrast, enthalpy can only be related to the heat change of the reaction under standard conditions.