Ahydrated salt, mgso4, weighing 3.211 g is heated in a crucible until reaching a constant weight. the weight of the anhydrous mgso4 is 1.570 g. what is the formula for the hydrated mgso4? 45 will receive !

Identify the electromagnets with poles that are reversed from the electromagnet shown above

Which of the following natural processes is most likely to support the formation of an underwater sinkhole? a pollution buildup from deposited minerals b limestone cave collapsing due to changes in sea level c erosion of large amounts of sand moved by ocean waves d oxidation of rock formed by chemical weathering

Scientists have developed an explanation of a phenomenon from several verified hypotheses. the explanation has been confirmed through numerous experimental tests.which option best describes this explanation? a. scientific lawb. research questionc. hypothesisd. scientific theory