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29 Cards in this Set
- Front
- Back
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As the ___ of a fixed amount of gas increases at constant ___ , its ___ decreases
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volume,temperature, pressure
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The ___ of a gas increases as the ___ of gas increases at constant ___ and ___.
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volume, amount, temperature, pressure
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Intermolecular forces
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are attractive forces that exist between molecules
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Surface tension
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is the tendency of liquids to minimize surface area.
Surface tension increases with increasing intermolecular forces |
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Liquids that evaporate easily are
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volatile
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Vaporization
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is a physical change in which is a substance is converted from its liquid form to its gaseous form.
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nitrogen narcosis.
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too much N2,
Also known as rapture of the deep |
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oxygen toxicity
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too much O2, a condition called
PO2 > 1.4 atm. |
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hypoxia.
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Partial pressures of O2—lower than 0.1 atm
Unconsciousness or death |
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heliox
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What divers that go below 50 m use
mixture of He and O2 contains a lower percentage of O2 than air. |
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vapor pressure
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The partial pressure of the water vapor
depends only on the temperature Higher the Temp= Higher Pressure |
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Zn metal reacts
with ___ to produce ___. |
HCl(aq), H2(g)
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In reactions of gases, the amount of a gas is often given as a ___.
Instead of |
volume,moles
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molar volume
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work at STP.
1 mol = 22.4 L |
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the volume of the
gas is or is not effected by the size of the molecules (under ideal conditions). |
is not
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Dalton's Law
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Ptot=Pa+Pb+Pc+ ...
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Ideal Gas Law
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PV = nRT
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Boyle's law
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V = 1/P
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Charles's Law
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V = T
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Avogadro's Law
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V = n
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The value of R
(ideal gas constant) |
= 0.0821 x Lxatm / molxK
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the melting points of covalent atomic solids relative to those of other types of solids are?
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High
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the melting points of nonbonding atomic solids relative to those of other types of solids are?
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Low
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the melting points of metallic atomic solids relative to those of other types of solids are?
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Variable
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the melting points of ionic solids relative to those of other types of solids are?
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High
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surface tension ___ with increasing intermolecular forces
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increases
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What is the formula for percent composition?
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Combustion reactions are a subclass of ...
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oxidation–reduction reactions.
-Involve the transfer of electrons between atoms |
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Cumbustion Reactions are ...
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Reactions in which O2 is consumed by combining with another substance
Always release heat and/or other forms of energy. Produce one or more oxygen-containing compounds. |
