Consider a reaction of chemicals depicted as a + b → c + d. suppose reaction of 21.8 grams of a with 40.7 grams of b gave 31.8 grams of c. however, the theoretical yield of c for this reaction was 49.9 grams. what was the percent yield of chemical c?

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

What determines the average kinetic energy of the particles in a gas? a. the number of collisions b. the number of particles c. the size of the particles d. the temperature

The atomic number, or number, is the described as the number of in the nucleus of an chemical element.