A box contains a mixture of small copper spheres and small lead spheres that are the same size. The total volume of both metals is measured by the displacement of water to be 422 cm3 and the total mass is 4.37 kg . The density of copper is 8.96 g/cm3, and the density of lead is 11.40 g/cm3. What percentage of the spheres is copper?

For part 1, describe the changes in the colors of the well, if any, as you go from well 1 to well 9—that is, as you go from the well with the least copper(ii) nitrate to the well with the most copper(ii) nitrate. which wells had the most distinct precipitate? for part 2, describe the changes in the colors of the well, if any, as you go from well 1 to well 9—that is, as you go from the well with the least iron(ii) sulfate to the well with the most iron(ii) sulfate. which wells had the most distinct precipitate? for part 3, describe the changes in the colors of the well, if any, as you go from well 1 to well 9—that is, as you go from the well with the least iron(iii) nitrate to the well with the most iron(iii) nitrate. which wells had the most distinct precipitate?