Mutual orientation of the colliding molecules Animation Play

Neutral polar amino acids Slideshow Play

Non-polar molecules Animation Play

Nucleophiles as Lewis bases Animation Play

Number of molecules Animation Play

Number of moles of ammonia molecules Animation Play

Numbers of molecules and atoms Animation Play

Occurrence of polyatomic molecules Slideshow Play

Organic molecules Class activity Play

Organic molecules Whiteboard presentation Play

Organic reactions Class activity Play

Organic reactions Whiteboard presentation Play

Osmosis – the diffusion of water molecules Animation Play

Permanent dipoles Student activity Play

Permanent dipole–dipole moment Animation Play

Permanent dipole–permanent dipole forces Student activity Play

Permanent dipole–permanent dipole interaction in liquids and gases Animation Play

Phosphorus and silicon oxides Animation Play

Physical properties of aldehydes and ketones – the boiling point Student activity Play

Physical properties of esters Animation Play

Physical properties of giant molecules of different structures Chart Play

Polar and non-polar molecules Illustration Play

Polar and non-polar molecules Student activity Play

Polar and non-polar substances Animation Play

Polar bond Animation Play