Gina was given an irregularly shaped piece of metal and was told that the density of the metal was 12 g/cm3. She measured the mass of the piece to be 204 g. What was the volume of the piece of metal Gina was given?

Ibeg i need 20. a reaction produces 4.93 l of oxygen, but was supposed to produce 1 mol of oxygen. what is the percent yield?

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

Why are people not able to scuba dive in the deep part of the ocean