CHEM 1035 Chapter Notes - Chapter 1: Ionic Compound, Covalent Bond, Formula Unit
Document Summary
Law of mass conservation- the total mass of substances do not change during a chemical reaction; the number of substances may change but the mass remains constant. Law of definite composition- no matter what its source, a particular compound is composed of the same elements in the same parts by mass. Law of multiple proportions- if elements a and b react to form two compounds, the different masses of b that combine with a fixed mass of a can be expressed as a ratio of small whole numbers. Atoms of one element can not be converted into atoms of another element. Atoms of an element are identical in mass and other properties and are different from atoms of any other element. Compounds result from the chemical combination of a specific ratio of atoms of different elements. Ions with higher charges attract/repel each other more strongly than ions with lower charges.
