Mid-term Review

10.64ml = ?L
0.01064 L
3200m = ?mm
3,200,000 mm
14.32L = ?KL
0.01432 KL
0.000435 Km = ?cm
43.5 cm
density
mass
——-
volume
molecule
compound made up of the same element- ie H2 Water is an exception
element
way matter is categorized
atomic mass
average of all mass numbers for an element
mass number
# of protons + # of neutrons
natural law
can be observed in nature
Valence/ionic charge
what happens when atoms gain or lose electrons – determine when and how
Metal
left side of periodic table, malleable, conductive, shiny
Nonmetal
Right side of periodic table, brittle, non-conductive, no luster
Metalloid
properties of both metals and nonmetals- semi conductors
Transition metal
metals with multiple oxidation states
Polyatomic ion
covalently bonded compound with a charge
Group/family
columns on periodic table
period
rows on periodic table
subscript
small number below- tells how many of that element
coefficient
large number out front in balanced equation- represents # of moles
Limiting Reagent/Excess
the given that limits the amount of product made or vice versus
Stoichiometry
Calculation of the quantities of reactants and products in a chemical reaction
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