Which is not a direct classification of matter? a. Element
b. Homogenious Mixture
c. Mixture
d. Pure Substance

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?

What is the energy in joules of a mole of photons associated with visible light of wavelength 486 nm?

Analyze the reaction to determine whether the reaction is exothermic or endothermic. explain your reasoning.