Which of the following is a simple definition of reduction? the loss of electrons
the gain of electrons
an agent that oxidizes something
an agent that reduces something

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

How could a student test the effect of removing heat from a gas that is stored in a sealed container? what must occur in order for matter to change states?

Quickly what are the following of organisms that existed over a wide area but only for a limited time period called a. soft fossils b. mold fossils c. index fossils d. trace fossils