Given the equation deltaG = deltaH - T deltaS, which set of conditions would result in a reaction that is unambiguously nonspontaneous? A. entropy decreases and the reaction is endothermic B. entropy increases and the reaction is exothermic C. entropy stays the same and there is no change in enthalpy D. entropy decreases and the reaction is exothermic

the atomic mass is the bottom number on the element.

-steel jelly

intermolecular forces are the forces between molecules or particles.

there are two kinds of van der waals forces: weak london dispersion forces and stronger dipole-dipole forces.

in molecule of water there are dipole-dipole forces between negatively charged oxygen from one molecule of water and positively charger hydrogen of another molecule of water.

hydrogen bond is an electrostatic attraction between two polar groups that occurs when a hydrogen atom (h), covalently bound to a highly electronegative atom such as flourine (f), oxygen (o) and nitrogen (n) atoms.