Which of these is a base? 1. HCI 2. Vinegar 3. HNO^3 4. Ammonia

Write a paragraph at least 10 sentences explaining how rocks are used today in society

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

Light waves can move through , but they travel fastest when they move through a(n) .