Which of the following are properties of ionic compounds?
a. ionic compounds have high melting and boiling points, do not readily dissolve in water, and conduct electricity in water.
b. ionic compounds have high melting and boiling points, readily dissolve in water, and conduct electricity in water.
c. ionic compounds have low melting and boiling points, readily dissolve in water, and conduct electricity in water.
d. ionic compounds have high melting and boiling points, readily dissolve in water, and do not conduct electricity in water.

he uptake of drugs from the intestine is often strongly influenced by diffusion. for example, consider a water-insoluble steroid for treating inflammation that is solubilized in aggregates of detergent molecules, called micelles. these micelles, aggregates of 80 soap molecules, have a molecular weight of 24,000, a diameter of 2.6 nm, and a charge of -27. the positively charge ions (counterions) in this system are na".

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.