Maggie completes a 10000-m race at an average speed of 160m/min. If Tom took 12.5 fewer minutes to complete the race what was Tom’s average speed?

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

Consider this initial-rate data at a certain temperature for the reaction described by

Consider the four elements above. which one of these elements will combine with oxygen in a 1: 1 ratio?