Use the drop-down menus to match the type of intermolecular force to its name.

a. dipole-dipole interactions :
occur between polar molecules
b. dipole-induced dipole interactions:
occur between polar and nonpolar molecules
c. london dispersion forces:
occur in all substances, but are the most important in nonpolar substances
d. hydrogen bond:
electrostactic attraction between a hydrogen atom and a highly electronegative atom
e. van der waals forces:
electrostatic interactions between partially charged regions of a molecule

Compare and contrast physical changes with chemical changes.

Ammonia and oxygen react to form nitrogen monoxide and water, like this: 4nh3 (g) + 5o2 (g) → 4no (g) + 6h2o (g) also, a chemist finds that at a certain temperature the equilibrium mixture of ammonia, oxygen, nitrogen monoxide, and water has the following composition: compound pressure at equilibrium nh3 65.1atm o2 31.3atm no 62.7atm h2o 65.8atm compound pressure at equilibrium nh3 65.3 atm o2 7.79 atm no 12.1 atm h2o 65.8 atm calculate the value of the equilibrium constant kp for this reaction. round your answer to 2 significant

Why is it incorrect to balance a chemical equation by changing the subscripts? explain.