CHEM103 Chapter 3: Ch.3 Chemical Compounds

• School: University of Alberta
• Department: Chemistry
• Course: CHEM103
• Professor: Veinot( G)

Document Summary

Covalent bonds bond that involves sharing elecrons makes molecular compounds. Ionic bonds transfer of electrons from one atom to another. Usually made up of non-metal atoms held together by covalent bonds represented by chemical formulas. Example: acetic acid (c2h4o2) empirical formula: ch2o. Empirical formula simplest formula for compound (subscripts are reduced to their simplest whole-number ration) Molecular formula based on actual molecule of compound. Structural formula shows order and types of bonds in which atoms are bonded together in a molecule. Condensed structural formula written on a single line, formula shows how atoms are connected. Line-angle formula/line structure structures without showing c and h atoms explicitly (helpful in drawing organic compounds) Example: acetic acid"s line structure: combination of metal and non-metal usually results in an ionic compound. Made up of positive and negative ions joined by electrostatic forces electron transfer occurs, metal ion loses electron to become positive (cation) and non- metal ion gains electron to become negative (anion)