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27 terms

Chapter 1 Matter and Change

Mr R's Summer Chemsitry
STUDY
PLAY
chemistry
the study of the composition, structure, and properties of matter and the changes it undergoes
chemical
a substance that has a definite compostion
mass
is the measure of the amount of matter
matter
anything that takes up space and has mass
atom
the smallest unit of an element that retains the properties of the element
element
a pure substance that is made up only one kind of atom
compound
a substance that is made from the atoms of two or more elements tht are chemically bonded
Extensive properties
properties that depend on the amount of matter that is present
intensive properties
properties that do not depend on the amount of matter
physical change
a change in a substance that does not involve a change in the identity of the substance
change of state
a physical change of a substance from one state to another
solid
matter that has a definite shape and volume
liquid
matter that does not have a definite shape but does have a definite volume
gas
matter that has no define shape or volume
plasma
matter at a high temperature in which the atoms have lost their electrons
chemical property
relates to a substance's ability to undergo changes that transform it into two or more new substances
reactants
substances that react in a chemical reaction on the left of the -->
products
substances that are formed in a chemical reaction on the right side -->
mixture
a blend of two or more kings of matter, each of which retains its own identity and properties
homogenous
mixtures that are uniform in composition
heterogenous
mixtures that are not uniform in composition
groups
vertical columns in the periodic table
families
vertical coumns in the periodic table
periods
horizaontal rows in the periodic table
metal
an element that is a good conductor of heat and electricity
non-metal
an element that is not a good conductor of heat and electricity
metalloid
an element that has characteristics of both a metal and a non-metal