Select all that apply: adding salt to water increases its boiling point because... the hygroscopic salt attracts vapor to condense into the water, making it harder for the water to evaporate the presence of a nonvolatile solute makes the solvent nonvolatile as well ions act as centers of crystallization keeping the water in the liquid phase the ions form IMF with the dipoles of water molecules making it harder to evaporate

Nonpoint source pollution is difficult to control because it

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?

For the reaction shown, calculate how many moles of no2 form when each of the following completely reacts. 2n2o5(g)→4no2(g)+o2(g) part a 1.0 mol n2o5 express your answer using two significant figures. nothing mol m o l request answer part b 5.4 mol n2o5 express your answer using two significant figures.