Ben will be conducting an experiment in which he reacts metals with different concentrations of acid in test tubes. what should ben wear to best protect himself during the experiment?
a)heat-proof gloves, a lab coat, and close-toed shoes
b)a lab coat, chemical gloves, and close-toed shoes
c)goggles, a lab coat, and heat-proof gloves
d)goggles, a lab coat, chemical gloves, and close-toed shoes

What are the 4 phases of matter in order of increasing engery content?

In an exothermic reaction the bonding energy of the product is: less than the reactants same as the reactants greater than the reactants dependent upon the presence of a catalyst

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?