Exercise depositional environments ▲53 part d mancos shale, cretaceous, road cuts along i-70 in central utah (figure 4.10) 1. what is the dominant sedimentary rock type shown in figure 4.10? 2. what does the black color suggest about the en- vironment of deposition? what additional infor- mation is provided by the types of fossils found in the mancos shale? 3. rocks of the mancos shale were most likely de- posited in which of the sedimentary environ- ments listed in table 4.1? explain your answer.

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 .