Non-aqueous acid–base reactions Student activity Play

Non-polar molecules Animation Play

Non-stoichiometric ratio of quantities of reactants Student activity Play

Not all collisions are effective Whiteboard exercise Play

Not all collisions are effective Student activity Play

Not all reactions involve collisions Student activity Play

Not all reactions involve collisions Whiteboard exercise Play

Notation and energy diagram Animation Play

Nuclear fusion Class activity Play

Nuclear fusion Class activity Play

Nuclear fusion Whiteboard presentation Play

Nuclear fusion Whiteboard presentation Play

Nucleophilic substitution Animation Play

Nucleophilic substitution reactions Animation Play

Nucleophilic substitution reactions – SN1 and SN2 mechanisms Student activity Play

Number of electrons in the orbital Animation Play

Number of molecules Animation Play

Number of moles of ammonia molecules Animation Play

Numbers of molecules and atoms Animation Play

Orbital energy and order of assignment to subshells Student activity Play

Organic compound Simulation Play

Organic molecules Whiteboard presentation Play

Organic molecules Class activity Play

Origin of crude oil (1) Student activity Play

Origin of fossil fuels Student activity Play