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Solubility
Test 4
52
Chemistry
Undergraduate 1
11/14/2010

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Term
Specific Heat
Definition
The quantity of heat energy that must be absorbed to increase the temp of 1g of substance by 1 degree Celcius
Term
high capacity
Definition

water has a _____ _____ to absorb and release heat due to strong hydrogen bonding)

Term
nonelectrolyte
Definition
nonconducting solute when in aqueous solution
Term
electrolyte
Definition
conducting solute when in aqueous solution
Term
ionic compounds 
Definition
what do compounds consisting of metals and nonmetals form?
Term
like dissolves like
Definition
solubility rule
Term
remain intact
Definition
what do covalent molecules do when dissolved in solution?
Term
polar
Definition
do polar or nonpolar bonds dissolve in water?
Term
acid
Definition
a substance that releases hydrogen ions, H+ , in aqueous solutions
Term
a proton
Definition
a hydrogen has no electron, and only one one proton, so it is referred to as?
Term
base
Definition
any compound that produces hydroxide ions (OH-) in aqueous solution
Term
hydronium ion
Definition
simply written as H+ but is H3O+ when in aqueous solution
Term

-bitter taste

-slippery feel when dissolved in water

-turns red litmus paper blue

Definition
properties of base
Term
dissociation
Definition
when molecules break up into ions
Term
neutralization reaction
Definition
when acids and bases react with each other
Term
neutralization reactions
Definition
when do hydrogen ions from an acid combine with the hydroxide ions from a base to form molecules of water?
Term
spectator ions
Definition
remove the species that appear unchanged o both sides of the reaction
Term
pH
Definition
in a solution, the measure of the concentration of the H+ ions present in that solution
Term
log-based and represented as: pH=-log[H+]
Definition
mathematical expression for pH
Term
carbon dioxide in the atmosphere dissolves to a slight extent in water and reacts with it to produce a slightly acidic solution of carbonic acid
Definition
why is rain naturally acidic?
Term
the oxides of sulfur (SOx) and nitrogen(NOx)
Definition
chief culprits of rain
Term
sulfur dioxide
Definition
these emissions are highest in regions with man coal-fired electric power plants, steel mills, and other heavy industries that rely on coal
Term
in states with large urban areas, high population densities and heavy car traffic
Definition
where are NOx emissions found
Term
acid anhydrides
Definition
oxides of sulfur and nitrogen are?
Term
acid anhydrides
Definition
"acids without water"
Term
the burning of coal
Definition
how does sulfur get into the atmosphere?
Term
damage to marble
Definition
effects of acid rain
Term
nuclear fission
Definition
the splitting of a large nucleus into smaller ones with the release of energy
Term
the sum of the masses of these fragments is lless than the original mass
Definition
why is energy released in Einstein's equation?
Term
E=mc^2
Definition
Einstein's Energy equation
Term
critical mass
Definition
the amount of fissionable fuel required to sustain a chain reaction, providing that the fuel is held together long enough for the reaction to occur.
Term
chain reaction
Definition
the fission reaction becomes self-sustaining
Term
nuclear reactor
Definition
a device in which a nuclear chain reactions are initiated, controlled, and sustained at a steady rate
Term

-efficient production of electricity

-little to no CO2 produced as a byproduct

Definition
benefits to nuclear power
Term
background radiation
Definition
the radiation that exists at a particular location, usually due to natural sources
Term
hormesis
Definition
the concept that low doses of a harmful substance (such as radiation) may actually be beneficial
Term
half-life
Definition
the time required for the level of radioactivity to fall to one half of it's initial value
Term
low-level radioactive waste (LLW)
Definition
specifically excludes nuclear fuel
Term

-contaminated lab clothing/tools from radioisotope experiments

-discarded smoke detectors

-radioactive pharmaceuticals

Definition
Types of LLW
Term
high level radioactive waste (HLW)
Definition
has high levels of radioactivity and, b/c of the half-lives of radioisotopes involved, requires permanent isolation from the biosphere
Term

-tends tobe highly acidic and basic

-contains toxic metals

-contains fissionable plutonium

Definition
characteristics of HLW
Term
battery
Definition
a system for the direct conversion of chemical energy to electrical energy
Term
galvanic cells
Definition
what are every day batteries called
Term
galvanic cell
Definition
a device that converts the energy released in a spontaneous chemical reaction into electrical energy
Term
oxidation
Definition
loss of electrons
Term
reduction
Definition
gain of electrons
Term
the transfer of electrons through an external circuit
Definition
What produces electricity?
Term
electricity
Definition
the flow of electrons from one region to another that is driven by a difference in potential energy
Term
electrodes
Definition
electrical conductors
Term
electrodes are placed in the cell as sites for chemical reactions
Definition
what enables the transfer of electrons?
Term
voltage
Definition
the difference in electrochemical potential between the two electrodes
Term
Lead-Acid Storage Battery
Definition
a true battery because it consists of a series of six cells.
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