If a 100.0 g sample of water at 67.4°C is added to a 100.0 g sample of water at 14.3°C, determine the final temperature of the water. Assume no heat is lost to the surroundings.

Noble gases are the most reactive elements on the periodic table. a. true b. false

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

Gymnast always perform on padded mats. how does the mats protect the gymnast