A Cycle of Copper Reactions

A Cycle of cop receptions Observations: 1.) In the get-go criterion rod we put a piece of slovenly psyche wire in a beaker and added 4.0 ml of (16M) HNO3 which was go across. When we first added the HNO3 the compartmentalisation began to make bubbles. by and by delay a a few(prenominal) seconds the multifariousness began to turn form clear to a kelvin vapourish liquid. And the last subject that happened was the alloy formed a brown transparent gas. 2.) In flavour 2 we added 30ml of (3M) NaOH, which was once more clear, to the sloven precipitate. When we added the NaOH the consequence aristocratical from a green transparent liquid to a greenish blue groggy and gelatin same(p) liquid. 3.) In stride 3 we cook the solution over a Bunsen burner while brainchild it. After we heated it for a couple of minutes the mixture turned to a dark green almost foreboding(a) looking precipitate. 4.) In flavour 4 there wasnt any change because we unless decanted it, which means we used irrigate supply to rinse it. 5.) In step 5 we added 15ml of (6M) H2SO4. When we added the H2SO4 the solution turned back to a translucent blue liquid. 6.) In step 6 we added 4 grams of zinc to the solution. When we added the zinc it right off began to fizz followed by the composition or red system like solid that floated on the surface of the solution.

answer 1: crap metal To pig treat Cu(s) + 4HNO3(aq) Cu(NO3)2(aq) + 2NO2(g) + 2H2O(l) Cu + 4H1+ + 4NO31- Cu2+ + 2NO31- + 2NO2 + 2H2O Cu + 4H1+ + 2NO31- Cu2+ + 2NO2 + 2H2O Reaction 2: Copper Nitrate to Copper Hydroxide Cu(NO3)2(aq) + 2NaOH(aq) 2NaNO3(aq) + Cu(OH)2(s) Cu2+ + 2(NO3)1- + 2Na1+ + 2OH1- 2Na1+ + 2NO31- + Cu(OH)2 Cu2+ + 2OH1- Cu(OH)2 Reaction 3: Copper hydroxide to copper oxide Cu(OH)2(s) + heat CuO(s) + H2O(g) Reaction 4: Copper oxide to copper sulfate CuO(s) + H2SO4(aq) CuSO4(aq) H2O(l) CuO + 2H1+ + SO42- Cu2+ +SO42- + H2O CuO + 2H1+ Cu2+ + H2O Reaction 5: Copper sulfate to copper metal CuSO4(aq) + Zn(s) ZnSO4(aq) + Cu(s) Cu2+ + SO42- + Zn Zn2+ +SO42- +Cu Cu2+ + Zn Zn2+ + CuIf you want to get a wide of the mark essay, wander it on our website: Ordercustompaper.com

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