CHE-1101 Chapter Notes - Chapter 2: Boiling Point, Antimony Pentachloride, Roman Numerals
Document Summary
2. 4 chemical reactions and chemical equations reactants: the substances present before the reaction begins products: the substances. The law of conservation of mass says that matter cannot be created nor destroyed daltons atomic theory - atoms just rearrange during a chemical reaction. Experimental evidence exists for ions in compounds solid ionic compounds are poor conductors and so are other substances like water. Formulas of ionic compounds in an ionic compound the metal looses electrons cation: positively charges ion anion: negatively charged ion. Ions of representative metals and nonmetals electrons gained or lost can be figured out by placement on the periodic table. The positive ion is given first in the formula. The subscripts in the formula must produce an electrically charged neutral formal unit. The subscripts should be the smallest set of whole numbers possible. For instance, if all the subscripts are even, divide by two.
