A question of balance

 Many chemical reactions can be reversed.   When this happens we can describe a forward reaction and a back reaction. Sometimes the for...

An exothermic reaction

 3.1 Energetics  Students should: 3.1 know that chemical reactions in which heat energy is given out are described asexothermic, and those i...

​To test the effect of particle size on the rate of oxidation we prepared three samples of steel wool each with different levels of coarseness (s...