Cu0(s)+2HCl(aq)-->CuCl2+H2O

Techniques

• The goal of this step was to get all the copper filtered into our beaker by using the dangerous chemical hydrochloric acid. Thats just what we did.
• First of all we were carefully sprayed down the outside of the filter paper to remove any traces of copper.
• We persisted by not stopping until there was not even a dot left of copper left in the filtration paper.
• We ended this step by carefully taking the filtration paper out of the filtration device, and we strove for accuracy by not letting the filter paper drop.
• This was one of the double replacement reactions and it occurred because the oxygen needed the two hydrogen to fill its valence electrons.