A geologist needs to measure the density of an irregularly shaped pebble.

a Describe how she can find its volume by the method of displacement.

b What other measurement must she make if she is to find its density?

This is how zirconium appears in the periodic table. rounded to the nearest whole number, how many electrons are in an atom of zirconium?

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.)

In the first law of thermodynamics, triangle e=q-w, what does q stand for