Download Chapter 1 OUTLINE - Madison County Schools

Chapter 1 OUTLINE
Chemistry deals with (1)______________ (2) ______________3) ______________of matter
Two kinds of Matter
1. Pure substance
 made up of ______________of matter
 ______________ composition and properties
 Can be either ______________or ______________
2. Mixture
 ______________ combined
 composition ______________
 made up of ______________kinds of matter
Two Kinds of Pure Substances
1. element
a. ______________ form of matter
b. made up of one kind of substance
c. examples: _________________ & ________________
2. ___________________
a. made up of two or more elements ______________ combined
b. examples: water & salt
c. chemical formula H2O (symbols & subscripts tell what ______________and how many
______________ make up compound)
Two Kinds of Mixtures
1. Homogeneous [also called ______________which is made up of a solute (______________ substance)
&______________ (dissolving substance, usually water)]
a. Looks ______________throughout
b. Examples: sugar water, air, alloy (solid solution that contain different______________&
sometimes ______________ substances)
2. Heterogeneous
a. Looks ______________ throughout
b. Examples: dirt, blood (made up of water, ______________ ,proteins, glucose, amino acids, &
______________)
Properties
Physical
Chemical
 Observable
 how a substance reacts or behaves
 Measureable
 results in a new substance
 Characteristics that a sample exhibits
 observed only when there is a change
without any change in its
in the ______________of the
______________
substance
Changes
Physical
Chemical
 change of state (solid, liquid, gas)
 involve energy change
 does ______________result in new
 results in a new substance with new
substance
______________
 another term is ______________
Law of Conservation of Mass
In a chemical change matter is NEVER ______________ or ______________.
Chemical Reactions and Energy
Exothermic
Endothermic
 gives off ______________ energy
 ______________heat energy
 example: the rapid decomposition of
 Example: The decomposition of
______________
______________ or ______________ (the
absorption of light energy from the sun)
Density is the amount of matter (______________) contained in a unit of ______________
Formula
Density = mass / volume
The density of solids and liquids is usually measured in units of grams per milliliter or ______________