Which of the following is the correct expression for the rate of the following reaction? note: not all species are gaseous. cuo(s) + h2s (g) < --> cu(s) + h2o (g) a. [cu] x [h2o] / ([cuo] x [h2s]) b. [h2o] / [h2s] c. [cuo] x [h2s] / ([cu] x [h2o]) d. none of these are correct

How could a student test the effect of removing heat from a gas that is stored in a sealed container? what must occur in order for matter to change states?

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 .

Which statement accurately represents the arrangement of electrons in bohr’s atomic model?