Science ! 20 points!me! i'll give brainliest to whoever answers correctly first! 1. according to the law of conservation of mass, in all chemical reactions changing the bonds changes the mass total mass is increased total mass is decreased total mass in unchanged 2. which of the following shows a balanced nuclear reaction?

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?