CHEM 1150 Lecture Notes - Boiling Point, Chemical Equation
Matter: is the stuff of life
Describe by:
Composition: what made up of and how much of each substance
§
Properties
Physical (intensive) properties: substance shows by itself w/o
interacting w/ another substance
no change(s) in composition, but can be changes in
phase
®
Chemical eq remains unaltered (how atoms are
arranged), (besides state of matter)
®
□
Chemical properties: those which the substance shows as it
interacts as with, or transforms into, other substances
Change(s) in composition but mass is conserved
®
Chemical equation changes the arrangement of atoms
®
□
Intensive properties: do NOT depend on the amount of
substance present (temp., pressure)
Many can be used to ID melting point, boiling point,
freezing point, density
®
□
Extensive properties: DO depend on the amount (quantity) of
substance present (mass, volume, length)
□
Pure substance (not a variable composition)
Element
®
Compound (if separable into simpler substances)
Chemically combined
◊
®
□
Mixture (it has a variable composition, has 2 or more
components and can vary in proportions)
Heterogeneous
Are separable or see various phases (wet sand,
can get the sediment through filtration)
◊
®
Homogeneous
®
□
§
○
-
Video notes: CHEM 1150 Fall 2014 Matter, CHEM
1150 Fall 2014 Changes in Matter, CHEM 1150 Fall
2014 Classification of Matter
Sunday, January 14, 2018
2:58 PM
find more resources at oneclass.com
find more resources at oneclass.com
Document Summary
Video notes: chem 1150 fall 2014 matter, chem. 1150 fall 2014 changes in matter, chem 1150 fall. Composition: what made up of and how much of each substance. Physical (intensive) properties: substance shows by itself w/o interacting w/ another substance no change(s) in composition, but can be changes in phase. Chemical eq remains unaltered (how atoms are arranged), (besides state of matter) Chemical properties: those which the substance shows as it interacts as with, or transforms into, other substances. Intensive properties: do not depend on the amount of substance present (temp. , pressure) Many can be used to id melting point, boiling point, freezing point, density. Extensive properties: do depend on the amount (quantity) of substance present (mass, volume, length) Mixture (it has a variable composition, has 2 or more components and can vary in proportions) Are separable or see various phases (wet sand, can get the sediment through filtration)
