Please help with the molecular and net ionic equations for these 5 reactions ple
ID: 1038004 • Letter: P
Question
Please help with the molecular and net ionic equations for these 5 reactions please
Reaction 1. Oxidation of Metallic Copper with Nitric Acid (HNO3) In this first reaction step, pure metal concentrated nitric acid, a strong oxidizing acid, to form aqueous copper(I) nitrate lic copper is oxidized by Reaction 2. Precipitation of Copper(lI) lon as Copper(I) Hydroxide. In this reaction, a solution of sodium hydroxide is added to the solution of copper(I nitrate and will cause the precipitation of insoluble copper(II) hydroxide Reaction 3. Thermal Decomposition of Copper(l) Hydroxide to Copper(ll) Oxide. Compounds that are stable under standard conditions often become unstable at elevated temperatures. When copper(II) hydroxide is heated to roughly 100 °C, it decomposes to copper(II) oxide according to the following reaction. Reaction 4. Reaction of Copper(ll) Oxide with Sulfuric Acid. Reaction 5. Reduction of Copper(ll) with Zinc. After the reaction is complete, the excess zinc must be removed from the copper/zinc mixture in order to purify the copper and accurately measure its mass. To accomplish this,Explanation / Answer
1.) Cu(s) + 4HNO3(aq) ——> Cu(NO3)2(aq) + 2NO2(g) + 2H2O(l)
Net ionic equation: Cu(s) + 4H+ (aq) + 4 NO3-(aq) ——> Cu2+ (aq) + 2 NO3- (aq)
2.) Cu(NO3)2(aq) + 2 NAOH(aq) ---> Cu(OH)2(s) + 2 NANO3(aq)
Net ionic equation: 2OH-(aq) + Cu2+(aq) ---> Cu(OH)2 (s)
3.) Cu(OH)2(s)(heat) = CuO(s) + H2O(g)
Net ionic equation: same as above because both reactant and product solid no ion cancelled.
4.) CuO(s)+H2SO4 ----> CuSO4(aq)+H2O(l)
Net ionic equation: CuO(s) + 2H+(aq) --> H2O(l) + Cu2+(aq)
5.) Zn(s) + CuSO4(aq) <=> ZnSO4(aq) + Cu(s)
Net ionic equation: Zn(s) + Cu2+(aq) --> Zn2+(aq) + Cu(s)
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