What is the percent by mass of magnesium sulfate in mgso4.7h2o

Astudent is asked to identify and element that is pale yellow brittle solid and does not conduct electricity. at which location in this periodic table would the element most likely be found?

Consider the story you just read. all but one of the choices below indicate that something is living.

In a 28 g serving of cheese curls there are 247mg of sodium. how much sodium is in a 12.5 ounce bag