CuSO4(aq)+Zn-->Cu(s)+ZnSO4(aq)

Techniques

• We used plastic tweezers rather than metal tweezers because metal reacts with the zinc.
• Using the plastic tweezers, we carefully selected and weighed 2 mg of zinc.
• We made sure not to inhale the zinc as it fizzed in our solution.
• Finally we managed to pull out the last of the remaining fizzing zinc.
• This reaction was the single replacement reaction and this reaction is occurring because the Zn has a stronger electronegativity so it is stealing the SO4 away from the Copper

Cu3(PO4)2(s)+3H2SO4(aq)-->3CuSO4(aq)+2H3PO4

Techniques

• We used a pipette to strategically reuse the chemicals.
• We properly disposed of the left over filtration paper.
• We had trouble getting the left over solution off of the filtration paper, but with persistence we managed to complete the task.
• Finally, we had to strive for accuracy when putting drops on our solution.

3CuCl2+2Na3PO4-->Cu3(PO4)2+6NaCl

Techniques

• We Sprayed distilled water along the outer edge of the filtration paper.
• We Squeezed drops of Na3PO4 into the filtration paper.
• We persisted in receiving drops from the bottom of the beaker and squeezing them onto the left over residue.
• We made sure that every drop of copper made it through the filtration device.
• This is also a double replacement reaction and the two react to make a precipitant.

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.  

Cu(OH)2-->CuO+H2O

Techniques

• We folded our filter in half twice with secure edges and no sign of breaking, then we made it into a cone so it could be an attribute to the filtration device.
• We sprayed distilled water on the filtration paper as it was settled in the device, therefore the paper resulted to stick to the outer layer of the filtration device.
• Slowly and carefully, we proceeded to filter out our solution leaving the excess water at the bottom of the beaker.
• Disposing of the filtration system was our next task that we completed.

Cu(NO3)2(aq)+2NaOH(aq)-->Cu(OH)2(aq)+2NaNO3(s)

Techniques

• First of all we established a practical temperature to heat our solution so the solution didn't boil and our safety was secure.
• While one of us was stirring the solution carefully, making sure it all stayed in the beaker, the other group member was close by making sure that the area around the other group member had no distractions.
• Also we took turns stirring the solution so we had rapid stirring and no tired arms throughout the whole step. We showed very cooperative actions during this step
• We also managed to capture a video while we were accomplishing our task...

Cu+4HNO3-->Cu(NO3)2+2H2O+2NO2

Techniques

• First if all we applied our safety glasses to ensure the safety of our optical sections.
• We listened carefully to the directions to guarantee that our reaction was the best it could possibly be.
• We were as careful as possible because we knew that the substance we were working with was very dangerous, so we took drop by drop so the reaction could get full affect with no mistakes.



Jordan, striving for accuracy

• We also had one of our group members take video to capture the procedure that was at hand. As you can see here...