A gas has a pressure of 6.5 atm at 540 K. What will the pressure be at 210 K if the volume does not change?

Which type of bonding involves the complete transfer of a valence electron from a less electrogrative atom to a more electronegative one

Ageologist determines that a sample of a mineral can't be scratched by a steel nail but can be scratched by a masonry drill bit. based on this information, the sample mineral has to be softer than a. orthoclase. b. fluorite. c. apatite. d. corundum.

Particles vibrate in a rigid structure and do not move relative to their neighbors.