Atoms of new heavier elements are only created in: a. chemical laboratories
b. the big bang
c. stars and super nova explosions
d. developed nations

How does a hydroelectric power plant converts energy into energy.

Which change to the system wood cause the freely-moving piston to lower?

The size (radius) of an oxygen molecule is about 2.0 ×10−10m. make a rough estimate of the pressure at which the finite volume of the molecules should cause noticeable deviations from ideal-gas behavior at ordinary temperatures (t= 300k ). assume that deviatons would be noticeable when volume of the gas per molecule equals the volume of the molecule itself.