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The Van der Waals force is the weakest of all the intermolecular forces. This interaction occurs between every molecule, over very small distances, and becomes weaker the further away the two molecules ar...

The ideal gas equation is given by pV = nRT, where p is pressure of the gas, V = volume, n = molar amount, T = temperature (in Kelvin!) and R is the gas constant which is given by 8.31 J / (K*mol). From t...

Protons have a +1 charge and electrons have a -1 charge. The overall charge on an atom is 0, therefore there must be an equal number of protons and electrons in an atom so that the charges cancel out. So ...

The molecular geometry deals with the position of the nucleus of the different atoms in the molecule whereas the electron geometry deals with the position of the orbitals. Electron geometry is specific fo...

(Using a diagram of energy changes) The simplest way of thinking about it is that exothermic reactions release energy, such as heat, to the surroundings whereas endothermic reactions absorb energy from th...