Lab Report #5
The purpose of our experiment was look at the relative reactivity of metals with
hydrogen ion, rank the relativities accordingly, and relate their periodic properties to
their position on the periodic table. Water and HCl were used to test the reactivity of the
Through the experiment it was discovered that Ca was the most reactive, while
Cu was the least reactive. The other metals fell into place in between the two extremes.
The results show that cold water can make Ca react, whereas it takes warm strong HCl
to make Cu even begin to react. The relative reactivity is significant in the results. Also,
the relationship between the reactivity and the periodic properties belonging to the
specific elements is an important result.
The results obtained do not differ much, if any, from what was expected. Of
course it was not possible to predict exactly which element would react to which
solution, but our ranking of relative reactivity is almost perfect. Things such as why HCl
needed to be warm instead of cold to cause some metals to react were cause for some
question. The activation energy plays a major role here. When a metal has a higher
activation energy the heat provides the extra energy needed to meet the requirement.
As for the positi