Which statement explains the relationship between the amount of energy it takes to break a bond and the amount of energy released when the same bond is formed? (1 point) A. The amount of energy it takes to break a bond is always greater than the amount of energy released when the bond is formed.

B. The relationship depends on the particular bond.

C. The amounts of energy are always equal.

D. The amount of energy it takes to break a bond is always less than the amount of energy released when the bond is formed.

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 .

8. what happens to matter during a chemical reaction

Exit what is the density of an object having a mass of 5.0 g and a volume of 45.0 cm3?