userdata-paziras-Chem101-Chap_02A

1 chemistry101 chapter2 daltonsatomictheory postulates

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: experimental evidence (1803­1810) · Dalton’s Atomic Theory: Ø explains the difference between an element and a compound Ø explains two scientific laws, and Ø predicts a new scientific law. 1 Chemistry 101 Chapter 2 DALTON’S ATOMIC THEORY POSTULATES · All matter is composed of indivisible particles called atoms. · An atom is a very small particle of matter that retains its identity during a chemical change. · An element is a type of matter composed of only one kind of atom. · All atoms of a particular element are identical (e.g. they have the same mass) · A compound is a type of matter composed of atoms of two or more elements chemically combined in fixed proportions. DEDUCTIONS · Gives a more precise definition for an element. · Give a more precise definition for a compound. · Supports the “Law of Definite Composition”. · Predicts the “Law of Multiple Proportions. · A chemical reaction consists of the · Supports the “Law of rearrangement of atoms from one set Conservation of Mass” of combination to another. · Atoms are not created or destroyed, but are rearranged. 2 Chemistry 101 Chapt...
View Full Document

Ask a homework question - tutors are online