Label each formula in the chemical quation below as either a reactant of a product.

fe + s -> fes

fe :
s :
fes :

The pressure, volume, and temperature of a mole of an ideal gas are related by the equation pv = 8.31t, where p is measured in kilopascals, v in liters, and t in kelvins. use differentials to find the approximate change in the pressure if the volume increases from 14 l to 14.6 l and the temperature decreases from 375 k to 370 k. (round the answer to two decimal places.)

Which of these metals are magnetic?

Which statements did both aristotle and ptolemy assume? check all that apply.