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Class notes CHEM 101

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Notes from General Chemistry 1 covering elements, atoms, molecules, states of matter, mixtures, solutions, and compounds.

Institution
Colgate University
Course
CHEM 101 (CHEM101)








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Institution
Colgate University
Course
CHEM 101 (CHEM101)
All documents for this subject (3)

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Uploaded on
August 21, 2024
Number of pages
3
Written in
2022/2023
Type
Class notes
Professor(s)
Peeler
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g
WI Wednesday Lecture protonsneutronselectrons
Chemical Substances subatomic
Atomsmallestunit that still retains chemicalidentitymadeup of particles particles
Molecule made
up of two or moreatomsjoinedtogether nolimitonhowlarge
Elementsubstancethatcannotbebrokendownintosimplesubstances madeof
onlythesamekindofatoms
Compound substance thatcan bebrokendowninto 2 or moreelementsmade of molecules containingdifferentatom
Mixtures componentsubstancesexisttogether withoutcombiningchemically can be separated
Homogenous uniformthroughout
Heterogenous not uniform throughout
Solution
. Homogenousmixture of 2 or more components oftensolid in liquid
Solute solidthat isdissolved
solvent liquid in which solid is dissolved

States of Matter
solid fixedvolume shape particlesheld together in rigid welldefined lattice
denoted s
Liquid fixedvolume conformsto shapeofcontainer particlesheldtogether butnotfixed can move
denoted 11
Gas notfixedvolume or shape fillsentirev01 ofcontainer conforms toshape particlesmovefreelylotsofemptyspa
denoted g
Elements
Elementnamesandsymbols


Atomic number

Elementalsymbol

Elementname
Atomic weight


Yetals vs Non Metals
MOST
MetalsELEMEIEIIE.IEtst
have s
Luster
conductivity
castintoshape
malleable
ductile

solidsvs Liquids vs Gases
only 2elements are liquid roomtemp
Mercury Hg metal
Bromine Br nonmetal
Theremainingmetals are solid
Nonmetals includesolids gases
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