APChemistryBondingTetrahedronProjectandArmor.docVIP

AP Chemistry Bonding Tetrahedron Project and Armor Reading Please visit these URLs: (Note that the SDUHSD policy on non-SDUHSD links applies here.) /webbook/38_binary/binary.php?mge_1=Almge_2=B /webbook/38_laing/tetrahedra.html#TT /webbook/37_ak/triangles.html Be sure and play around with the synthlet at the top of the first link. Go ahead and construct the tetrahedron if you would like: /TT.pdf 1. Use the tetrahedron, the synthlet, or other resources to categorize the following compounds as either metallic, ionic, covalent, or network covalent: AlCl3, TiC, SiF4, SiH4, SiC, SF4, H2S, CO2, CuZn, CuSn, PbCl2, PbC, AsI3, AsF3, SbCl3, SbF3, SF6, O2, graphite, diamond, carbon nanotubes, gallium arsenide, gallium nitride, CH4, steel, duralumin, cupronickel, brass, NaI, FeCl2, chromyl chloride, CrO2Cl2, nylon. 2. List the properties of materials that have each type of bonding. Read the reading below on armor. Answer the questions. Armor has evolved from animal skins to synthetic materials. Its purpose is to protect a person or object. It’s obvious that steel makes good armor, but what about glass, plastic, and water? Read further to find out. The earliest types of armor were made from natural materials such as skins, wood, and bone. They would have been designed to stop weapons made from wood, bone, and stone. As metal weapons were deployed most of the early types of armor would have been obsolete. In response new materials were employed. These included leather and metals. In the age of sail ships used their wooden construction, often up to three feet thick, as a form of armor. As projectiles became more powerful this proved inadequate. Iron was used as an armor material but proved ineffective as it is too soft. Cast iron, an alloy of ion and carbon, was too brittle. When steel became easier to produce in thick plates it was adopted. The problem with battleship armor was making steel that was hard enough to shatter a projectile but ductile enough to abs