Question 11 (2 points) The diagram below shows two models of the atom.
Electron
o
о
Proton
O
Thompson's model
Bohr's model
Source: Creative Commons
2010 FLVS
The models can be best used to (2 points)
Оа
Oь
recreate something which is easily observed in nature
prove that all atomic theories have the same meaning
demonstrate the transformation of atomic theory into law
Od
represent the locations of subatomic particles in different atomic theories

One way in which the useful metal copper is produced is by dissolving the mineral azurite, which contains copper(ii) carbonate, in concentrated sulfuric acid. the sulfuric acid reacts with the copper(ii) carbonate to produce a blue solution of copper(ii) sulfate. scrap iron is then added to this solution, and pure copper metal precipitates out because of the following chemical reaction: (s) (aq) (s) (aq) suppose an industrial quality-control chemist analyzes a sample from a copper processing plant in the following way. he adds powdered iron to a copper(ii) sulfate sample from the plant until no more copper will precipitate. he then washes, dries, and weighs the precipitate, and finds that it has a mass of .