The oxygen sensor is a simple device that is able to demonstrate a practical use of electrochemical cells, it is inexpensive and safe to use in a s
Activation energies form an energy barrier to a chemical reaction taking place. Simple collision theory, i.e.
The algebra of quantities - how it works and how it could be used in student's chemical calculations.
Marten J. ten Hoor
Students often struggle to determine whether changes in matter are physical or chemical, for example, they may have difficulty labelling a candle m
Entropy is more usually studied in physics and chemistry but can also be considered in biology to explain limitations of energy changes in life-pro
CHEMopera is an opera blended with demonstrations of chemical reactions.
Yong Hee Chung