Which of the following statements related to a mole are true? Select all that apply.

A. A mole is used to simplify the counting of atoms.

B. Representative particles can only be atoms.

C. A mole is used to simplify the counting of electrons.

D. Representative particles can be atoms, molecules, or formula units.

E. The number of representative particles in a mole (6.02 x 1023) is called Avogadro's number

The ozone molecule o3 has a permanent dipole moment of 1.8×10−30 cm. although the molecule is very slightly bent-which is why it has a dipole moment-it can be modeled as a uniform rod of length 2.5×10−10 m with the dipole moment perpendicular to the axis of the rod. suppose an ozone molecule is in a 8000 n/c uniform electric field. in equilibrium, the dipole moment is aligned with the electric field. but if the molecule is rotated by a small angle and released, it will oscillate back and forth in simple harmonic motion.what is the frequency f of oscillation?

Which statement best describes the liquid state of matter? a. it has definite shape but indefinite volume. b. it has definite shape and definite volume. c. it has indefinite shape and indefinite volume. d. it has indefinite shape but definite volume.

Show how to convert the temperature 84.7° c to kelvin. include all steps and label the final answer