What is the difference between the number of neutrons in an atom of calcium Ca, and the number of neutrons in an atom of Scandium Sc? 4

5

1

3

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 simple machine is not part of this compound machine? a. lever b. pulley c. inclined plane d. wheel and axle

I’ve been stuck on this for a while