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The easiest way to start your answer is by writing out the equation for the reaction {2SO₃ (g) <-> 2SO₂ (g) + O₂ (g) } and considering what the equilibrium constant ...

Reactants are adsorbed onto the surface of the catalyst (1). Bonds forms between the atoms and molecules on the surface (2), and the products desorb (3).

The general trend is a decrease in first ionisation energy, which is because as you descend the group the number of energy levels surrounding the positively charged nucleus increases. This means that the ...

Transition metals form coloured ions in solution. They have variable oxidation states, and often can be sued as catalysts. They are also able to form complexes with non-metal ligands, such as H2O or NH3, ...

In order for something to conduct electricity, there must be charged particles within the substance and these charged particles must be free to move.Metals consist of positive ions in a sea of delocalised...