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

Our final product: copper.

Zinc is reacting with a cupric sulfate solution, producing a zinc sulfate solution and the solid: copper.

Taide is striving for accuracy by making sure all excess zinc is reacting with the solution by constantly stirring it.

SINGLE REPLACEMENT

The driving force behind this reaction was the formation of a solid. When CuSO4 reacted with Zn, it became ZnSO4 and formed the solid copper.

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

This is an acid based neutralization reaction as we pour sulfiric acid on to solid cupric phosphate, which produces a blue cupric sulfate solution and phosphoric acid.

During the filtratraion process Natalie pointed out that we lost a few drops of the solution. She was striving for accuracy by using a pipette to get the drops back.

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

In this picture a solution of cupric chloride and sodium phosphate have produced a blue cupric phosphate and sodium chloride and are being heated.

Natalie is striving for accuracy by removing excess sodium phosphate in order to get an exact measurement of 15mL.

CuO(s) + 2HCl(aq) ---> CuCl2(aq) + H2O(l)

Black cupric oxide solid is mixed with hydrochloric acid to form a green cupric chloride salt solution and water.

As you can tell Andrew is serious when it comesto striving for accuracy. In this picture Andrew is measuring out hydrochloric acid in a cylinder.

DOUBLE REPLACEMENT
It is a transfer of electrons and these particular products formed because Cu has a positive 2 charge and O has a negative 2 charge. When mixed with HCl (H having a 1 postivite charge and Cl a negatvie 1 charge) the electrons transfer and form the products.

Cu(OH)2(s) ---> CuO(s) + H2O(l)

Blue cupric hydroxide is decomposed by heating to form solid black cupric oxide and water.

Andrew is striving for accuracy by rinsing the beaker's sides to collect all the copper

sediments.

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

Cupric nitarate solution reacts with aqueous sodium hydroxide and produces blue cupric hydroxide and sodium nitrate.

By getting down to eye level Andrew is sriving for accuracy by seeking to find the exact measerment of the liquid to pour into the graduated cylinder.

DOUBLE REPLACEMENT
It is a transfer of electrons and these particular products formed because Cu has a positive 2 charge and NO3 has a negative 1 charge. When mixed with NaCl (both Na and Cl have a positive and negative 1 charge) the electrons transfer and form the products.

Cu(s) + 4HNO3(aq) ---> Cu(NO3)2(aq) + 2H2O(l) + 2NO2(g)

Solid copper is reacting with nitric acid, becoming a blue solution of aqueous cupric nitrate and H2O, and a brown, poisonous gas: nitrogen oxide.

Natalie is striving for accuracy by getting down to eye level with the meniscus, and measuring the the exact amount of nitric acid.