Alex cooled a gas from 50.0ºC to 25.0ºC at constant volume. Which of the following decreased? I. The molar mass of the gas

II. The distance between the molecules

III. The speed of the molecules

I only
I only

II only
II only

III only
III only

I and III

Ahypothrticalax type of ceramic material is known to have a density of 2.10 g/cm3 and a unit cell of cubic symmetry with a cell edge length of 0.57 nm. the atomic weights of the a and x elements are 28.5and 30.0 g/mol, respectively. on the basis of this information, which of the following crystal structures is (are) possible for this material: sodium chloride, cesium chloride, or zinc blende

In a copper wire, a temperature increase is the result of which of the following

Uranium can supply energy for the worlds electricity without admitting harmful greenhouse gases which of these statements best describes an outcome of uranium mining