Apiece of metal is dropped into a solution of acid. using a sharp probe, the metal is broken into smaller pieces while in the solution. also while in the solution, some of the metal reacts, producing hydrogen gas. which statement is true about the changes that have occurred? a. only physical changes have occurred. b. no physical or chemical changes have occurred. c. only chemical changes have occurred. d. physical and chemical changes have occurred.

dipole moments occur when there is a separation of charge. they can occur between two ions in an ionic bond or between atoms in a covalent bond; dipole moments arise from differences in electronegativity. the dipole moment is a measure of the polarity of the molecule.

explanation:

in inorganic chemistry -dipole moment ( μ ) is the measure of net molecular polarity, which is the magnitude of the charge q at either end of the molecular dipole times the distance r between the charges. μ = q × r.