The table provides the number of valence electrons for each of the two atoms that form an ionic and a covalent compound. which of the following statements is true about one of the compounds? compound c is ionic because both atoms are in need of electrons. compound d is covalent because both atoms are in need of electrons. compound d is ionic because one atom is in need of electrons and the other needs to lose electrons. compound c is covalent because one atom is in need of electrons and the other needs to lose electrons.

Compound D is covalent because both atoms are in need of electrons.

Explanation:

we know that a covalent bond is when both atoms are in need of electrons. Ionic bonds occur when one atom needs to gain electrons and one needs to lose electrons. therefore we can already eliminate answer options One and Four because they are misidentifying the two types of bonds mentioned.

Now when we take a look at compound D we see that both atom 1 and 2 are close to 8 electrons (which are needed to create a full orbital). So if they share electrons through a covalent bond they can both have full orbitals. Sharing electrons like this is the definition of a covalent bod therefore answer option 2 is the correct statement.  

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.

a corroding iron, if that's one of your choices