Buffer range Student activity Play

Burning sodium in chlorine Animation Play

Calculating the mass of product formed Student activity Play

Calculating the masses of reactants using chemical equations Student activity Play

Calculating the number of moles in a given mass Animation Play

Calculating the number of moles in a given mass Student activity Play

Calculating the pH of ethanoic acid/sodium ethanoate buffer Animation Play

Causes of ion formation Whiteboard exercise Play

Causes of ion formation (2) Student activity Play

Cement, concrete Student activity Play

Changes in atomic radius within a group of s-block elements Animation Play

Changes in electronegativity across Period 3 Animation Play

Changes in state Student activity Play

Changes in the atomic radius of s-block elements within the period Animation Play

Changes in the first ionisation energy across Period 3 Illustration Play

Changes in the ionisation energy across a period Animation Play

Changes in the ionisation energy down the group Animation Play

Chemical bonding in the chlorides of Period 3 Student activity Play

Chemical elements that make up black soil Illustration Play

Chemical equation Student activity Play

Chemical equations Student activity Play

Chemical properties of oxides Student activity Play

Chemical reactions Student activity Play

Chromium(III) and iron(II) compounds Animation Play

Colours and physical states of metals Slideshow Play