Copper has density of 8.96g/cm^3. A sample of impure copper is found to have a density of 7.20/cm^3. There are two possible impurities aluminum and or lead. Given that Aluminum has a density of 2.70g/cm^3 and lead has a density of 11.34g/cm^3, explain which is the most possible impurity in the sample

Ibelieve the answer is d

"electrical energy" transforms to "thermal energy".hope my answer has you : )

Answerthe half-reaction having the greatest tendency to occur at the anode:     i₂(aq) + 2e⁻  ⇄ 2i⁻  ;   e = +0.53 v======oxidation occurs at the anode. we must therefore find the half-reaction with the greatest tendency to oxidize.the given values of e are reduction potentials (the form of the half-reactions are of reduction).the lower the reduction potential, the higher the potential to oxidize. the half-cell with the lowest reduction potential will have the greatest tendency to oxidize at the anode.the half-reaction having the greatest tendency must be    i₂(aq) + 2e⁻  ⇄ 2i⁻    e = +0.53 vbecause its reduction potential is the lowest out of the three.

Answer///an early form of the atomic theory; dalton atomic theory;