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40 Cards in this Set
- Front
- Back
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Fe
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Iron
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Cu
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Copper
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Au
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Gold
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Ag
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Silver
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Pb
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Lead
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Hg
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Mercury
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Sn
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Tin
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K
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Potassium
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W
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Tungsten
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Sb
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Antimony
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Metals
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Solids at room temp
tend to be shiny malleable ductile good conductor of heat/electricity located to the left of diagonal |
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Non-Metals
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varying states of matter
dull brittle not good conductors of heat/electricity located to the right of diagonal line |
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Metaloids
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some metals, some are not
touch the dividing line except Al |
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Four Family Groups
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ALKALI METALS
ALKALINE EARTH METALS HALOGENS NOBLE GASSES vertical columns of elements with similar chemical properties |
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Alkali Metals
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Group 1A far left column
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Alkaline Earth Metals
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Group 2A second column from left
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Halogens
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Group 7A second column from right
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Noble Gasses
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Group 0 far right column
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Representative Elements
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8 taller columns on outside of periodic table of elements
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Transition Elements
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10 shorter columns in center of periodic table of elements
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Diatomic Elements
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7 elements which when found in nature exist as pairs
start at 7 make a 7 plus H NOFClBrIH |
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Chemical formula
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shows the number and type of each element in a compound
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Chemical properties
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describe the ability of a substance to form new substance(s)
Only determined by testing flammability, composition,reactivity |
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Physical change
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things which alter apperance of substance but not its composition
ex.crinkle aluminum foil sheet dissolve salt in water, throw a rock through glass window dissolving, cutting, crumpling, melting, boiling, freezing, usually reversible |
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Chemical change
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the substance changes into new substance
ex.. bubbles form (gas), color change, solid forms, cook/burn, formation of heat usually NOT reversible |
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Chemical equations
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mathematical sentence which describes a chemical change
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Reactants
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stuff put into beaker
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Products
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stuff that is made by reaction
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Law of Conservation of Mass
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mass cannot be created nor destroyed, it can only change in form
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Law of Conservation of Energy
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energy cannot be created nor destroyed, it can only change in form
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Engery
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the ability to do work
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Kinetic Energy (KE)
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engergy of motion
KE=1/2 m v Larger mass and speed=more KE |
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Potential Energy (PE)
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energy of position or stored energy
PE=mgh |
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Heat
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a form of energy measured in calories or Joules
1calorie=4.18 Joules |
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calorie
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1 calorie is the amount of energy required to raise 1 gram of water 1 C
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Calorie
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food calorie
1 Calorie=1000cal=1kcal |
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Specific Heat
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amount of energy required to raise 1 gram of a substance
1 C SH= E m t |
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Specific Heat of water
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1 cal
g C |
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Exothermic reaction
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Exo= exit
heat goes out feels hot reactants ------- products + E |
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Endothermic reaction
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Endo= enter
heat goes in feels cold reactants +E----- products |
