The potential energy diagram for a chemical reaction is shown below. Without catalyst
With catalyst
Potential Energy (J)
1804
160-
140
120-
100-
80-
60-
40-
20-
0
Reaction Coordinato
The activation energy for the reaction with a catalyst is:
O 180 kJ
140 kJ
100 kJ
60 kJ

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 .