Determining the molarity of the hydrochloric acid Whiteboard exercise Play

Determining the molarity of the hydrochloric acid – summary Animation Play

Determining the molecular formula Animation Play

Determining the signs of the electrodes in a cell Animation Play

Determining the units of equilibrium constant Whiteboard exercise Play

Diagnosis of coronary heart disease Slideshow Play

Diagnosis of coronary heart disease Student activity Play

Different chemical reactions Slideshow Play

Differentiated cells – neurones Student activity Play

Dinitrogen tetroxide – nitrogen dioxide chemical equilibrium Animation Play

Direction of spontaneous reaction Animation Play

Discharging a battery. Accumulators. Animation Play

Discharging a battery. Accumulators. Whiteboard exercise Play

Discharging a battery. Accumulators. Student activity Play

Discovery of electron Animation Play

Discovery of elementary particles Student activity Play

Displace metal from a solution Animation Play

Displacement of hydrogen from acids by metals Animation Play

Displacement of metals from solutions of their salts by other metals Student activity Play

Displacement reactions Student activity Play

Displacement reactions among the halogens Student activity Play

Displacement reactions among the halogens Animation Play

Do catalysts affect the reaction equilibrium? Animation Play

Dynamic equilibrium Student activity Play

Dynamic equilibrium Animation Play