CHEM 1201 Chapter : Ch. 1
Document Summary
Mastering chemistry (intro to mastering chemistry) assignment is bonus. Chemistry is the study of properties of materials and the changes that they undergo. Property: characteristic of matter, describes differences between matter. Atom: one building block of an element (117 elements) Specific volume and shape, closely packed and do not move: solid- ice, liquid water (2hydrogen with one oxygen) No specific shape, but specific volume; molecules are closer in contact with one another: gas- water vapor. No specific volume or shape, spread out and moving very fast. Pure- one element, not influenced by properties of more than one element (1type of element) Mixture- characteristics of more than one element; made up of more than one element (compounds) Homogenous- uniform composition, contains only 1 type of compound. Humans are composed of mostly oxygen; same as the earths crust. Every type of atom or element is called by a name (a letter symbol)
