CH-1010 Lecture Notes - Lecture 15: Acetic Acid, Empirical Formula, Covalent Bond
28 Mar 2018
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Document Summary
Chemical formula review: the chemical formula shows the elements present in a compound and their relative proportions. Ionic compound: simplest whole number ratio of the cations to the anions. Cation written first: compound composed of ions, no molecules, mass of 1 formula unit in amu, mass of 1 mole in grams. Molecular compound: indicates the composition of the individual molecule. Less electronegative atom written first: smallest particle is a molecule, mass of 1 molecule in amu, mass of 1 mole in grams. Formula or molecular mass: formula mass: the sum of the masses of the atoms in a single molecule or formula unit. Chemical reaction: a chemical reaction is a chemical change which forms new substances, involves changes in the structure and energy content of atoms, molecules, or ions. Equation: the chemical equation is a symbolic representation of a chemical reaction, presents chemical reaction info in a concise, easy to understand manner, indentifies reactants and products using their chemical formulas.
