Electron Arrangement and EMR Essay

Chemical Reaction is a process that involves rearrangement of the molecular or ionic structure of a substance, as opposed to a change in physical form or a nuclear reaction. Reactant is a substance participating in a chemical reaction, especially a directly reacting substance present at the initiation of the reaction. A word equation is an equation where only the words of the products and reactants are given. It is used to describe chemical reactions using words. A skeletal equation is a chemical equation that is not balanced, with an unequal number of atoms on each side of the reaction. A chemical equation is the symbolic representation of a chemical reaction wherein the reactant entities are given on the left-hand side and the product entities on the right-hand side. A Coefficient is the number that normally appears at the beginning of a term in a chemical equation. It indicates the number of molecules or atoms that were involved in the chemical reaction. 1.H2 + Br2 —–> 2HBr 2.Potassium Chlorate —-> Potassium Chloride + Oxygen = KClO3 ——> KCl + O2 KClO3 ——> KCl + O2 Balanced = 2KClO3 ——> 2KCl + 3O2 3.FeCl3 + 3NaOH = Fe(OH)3 + 3NaCl 4.Zn (s) + H2SO4 (aq) = ZnSO4 (aq) + H2 (g) 5.CuS + HNO3 -> CuSO4 + H2O + N2O CuS + 2 HNO3 -> CuSO4 + H2O + N2O