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Basic Chemistry

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by

Cheryl Stover

on 3 June 2014

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Transcript of Basic Chemistry

Matter
Atoms
Subatomic Particles
Protons
Electrons
Neutrons
Chemical Bonds
Covalent
Hydrogen
Polar
Nonpolar
Chemical Rxns
Elements
-Fundamental units of matter
-96% of body
Hydrogen (H)
Oxygen (O)
Nitrogen (N)
Carbon (C)
is made of
are made of
contain
is a particle smaller than an atom
include
building block of elements
are joined by
Ionic
negtive charge
outside nucleus
no charge
inside nucles
positive charge
inside nucleus
occupies space
has mass
Synthesis
Decomposition
Exchange
Weak chemical bonds
Hydrogen is attracted to the negative portion of polar molecule
Provides attraction between molecules
Form when electrons are completely transferred from one atom to another
Ions: Charged particles
Anions are negative
Cations are positive
Either donate or accept electrons
Atoms are united by chemical bonds
Atoms dissociate from other atoms when chemical bonds are broken
Atoms become stable through shared electrons
Electrons unevenly shared
Have a positive and negative side
Electrons shared equally
Electrically neutral as a molecule

include
form and break by
include
can be
larger molecules are built
ex: dehydration synthesis
molecules are broken apart
ex: hydrodylsis
involves both synthesis and decompositon
NaOH + HCl------------> NaCl + H20

Reactants= Products=
Molecules that react Molecules that are
produced
Arrangement
1st shell holds 2 e-
2nd on hold 8 e- each
bonds will form if outermost (valence) orbit is not full
hydrophobic
hydrophyllic
Full transcript