CHM 1311 Study Guide - Formula Unit, Sulfite, African Handball Confederation
Document Summary
We encounter chemistry in our everyday lives: conservation of matter - a chemical equation must be balanced for mass. 1743-1794: atomic theory - a chemical equation must have the same number of atoms of the same kind on both sides. The total mass of substances present does not change during a chemical reaction. All matter is made of small, indestructible particles called atoms . One kind of atom cannot be converted into another kind. All atoms of a given element are identical and atoms differ for different elements. Compounds are formed when atoms of more than one element combine. Atoms of different elements combine in simple, whole number ratios (e. g. 1:1 as in ab; or 1:2 as in ab2) Atoms are the basic unit of an element that can enter into chemical combination. Z/m of the electron = 1. 76 108 c/g. Ray bends toward positive plate in electric field.
