Chapter 1: Basic Concepts about Matter
Chapter 1: Basic Concepts about Matter CHEM 103 - 02
Popular in General Descriptive Chemistry I
Popular in Chemistry
This 2 page Class Notes was uploaded by Vonshay Spence on Monday September 14, 2015. The Class Notes belongs to CHEM 103 - 02 at University of North Carolina - Greensboro taught by Mrs. Mary Gerhard in Summer 2015. Since its upload, it has received 119 views. For similar materials see General Descriptive Chemistry I in Chemistry at University of North Carolina - Greensboro.
Reviews for Chapter 1: Basic Concepts about Matter
Killer notes! I'm stoked I can finally just pay attention in class!!!
-Mrs. Houston Kirlin
Report this Material
What is Karma?
Karma is the currency of StudySoup.
Date Created: 09/14/15
Chapter 1 Basic Concept about Matter De nitions gt gt gt Chemistry the science of materials their composition structure and the changes they undergo everything Matter anything that has mass and occupies space Substance a homogeneous material consisting of one particular kind of matter Physical States of Matter gt gt gt Solid has de nite shape and de nite volume Liquid has inde nite shape and de nite volume take the shape of its container Gas has inde nite shape and inde nite volume completely lls its container Physical Properties gt gt Extensive depends upon the amount of matter present mass length vmume lntensive same density throughout 1 Malleable hammered out 2 Ductility drawn into wire 3 Conductivity Heat 0 Electrical 4 Color crystalline shape melting point boiling point refractive index ability to bend light Chemical Property Characteristic of a substance that describes the way the substance undergoes or resists change to form a new substance Physical Change Changes of state solid liquid gas Chemical Change Are those in which different substances with new properties are formed Heterogeneous mixture Mixture that contains visibly different phases each of which has different properties it can be separated by physical means Elements Substances that cannot be further decomposed by ordinary chemical means Compounds Substances that can be decomposed into two or more simpler substances by ordinary chemical means Chemical symbol One or two letters designation for an element Ex Nasodium Molecule two or more atoms bonded together Diatomic molecules seven elements that when in their natural state are always in pairs EX H2 N2 02 F2 CI2 Br2 I2 Chemical formulas notation made up of the symbols of the elements present in a compound and numerical subscripts that indicate the number of atoms of each element present in a molecule or a compound 1 2 3 4 5 6 7 8 EX H20 NaCI Practice Quiz What is the difference between chemical change and chemical property Names the states of matter Does it have de nite or inde nite shape and volume What are the seven elements of diatomic molecules Name if it is Homogeneous or Heterogeneous mixture 0 Koolaid Water Hot Salt Water Sand and Water Gold OOOO Match the pairs Physical Property Burning Wood Chemical Property Rusted Metal Physical Change Rotted Banana Chemical Change Melted Ice De ne Molecule What is the difference between element and compound When it comes to physical properties what is the difference between extensive and intensive What are the four characteristics of intensive