Suppose during volleyball practice you lost 2.o lbs of water due to sweating if all of this water evaporated how much energy did the water absorb from your body 2.2lbs=1.0 kg

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

Which element forms an ionic bond with flourine? 1) fluorine 2) carbon 3) potassium 4) oxygen

What is the relation between concentration of reactants and the rate of chemical reaction?