What is the molality of a solution that has 4 mol of KCI in 0.800 kg of water? help me please​

Frictional forces acting on an object are often converted into energy, which causes the temperature of the object to rise slightly.

Give the orbital configuration of the phosphorus (p) atom.

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?