Variable oxidation states – vanadium, cobalt, nickel and zinc Student activity Play

Volume of a compound solid Animation Play

Volume of a compound solid – a cube and two pyramids Whiteboard exercise Play

Volume of a compound solid – a prism and a pyramid Whiteboard exercise Play

Water Student activity Play

What affects the colour of transition metal compounds Animation Play

What are chemical compounds? Student activity Play

What is organic chemistry? Student activity Play

What is the enthalpy of hydration? Animation Play

What is the interest rate? Whiteboard exercise Play

What is the interest rate? Student activity Play

Why do magnesium and chlorine form the compound MgCl2, but not MgCl? Animation Play

Why does dissolving electrolytes in water cause them to dissociate? Animation Play

Why is water important for the human organism? Slideshow Play

Why some ionic compounds do not exist Whiteboard exercise Play

Why some ionic compounds do not exist Student activity Play

Word equations for reactions Student activity Play

Word equations for reactions Whiteboard exercise Play