How many moles are in 9.53 x 1013 molecules of iron (III) oxide (Fe2O3)?

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

Use the periodic table to determine the electron configuration of dysprosium (dy) and americium (am) in noble-gas notation.

The best solution for preventing harm to people and pets from severe hurricanes involves determining and warning residents about what