The Prefix is Otterbox's least expensive iPhone case. The durable silicone, polycarbonate skeleton build of the OtterBox Prefix is thicker than the Commuter and Reflex, but also the least protective. The Prefix is a one-piece case, meaning that it does not snap in place like the Reflex .
carbon is considered tetravalent because it has four valence electrons the valence electrons are in the outermost shell of the atom and allows carbon to form four bonds to other atoms
Yes the electronegativity between carbon and oxygen is .91 making it polar covalent and carbon is able to triple bond with oxygen making carbon slightly positive and oxygen slightly negative on each sides of the molecule. molecule of carbon monoxide contains 1 atom of carbon and 1 atom of oxygen, so the formula is CO (not to be confused with Co). A molecule of carbon dioxide contains 1 atom â¦ of carbon and 2 atoms of formula, so the formula is CO2.