Sort the following events by whether they occur before or during an earthquake. items (6 items)drag and drop into the appropriate area below rocks move up to rocks move up elastic seismic waves a couple inches 5,000 miles per are produced deformation per year rocks "bounce* back and forth relaxes tefore an earthquake drag nddrop here < 0313 > 40 5 6 8 9

The first element on the periodic table of elements is carbon. a. true b. false

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 .

You wish to prepare a buffer consisting of acetic acid and sodium acetate with a total acetic acetate plus acetate concentration of 250 mm and a ph of 5. what concentrations of acetic acid and sodium acetate should you use