AP Chem Unit 2 test

30 terms by kellylord 

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polar molecule

a molecule that has an uneven dispersion of charge

hydration

the interaction between the dissolving molecules and water molecules

solute

what is being dissolved

solvent

what it is being dissolved in

Arrhenius

conductivity comes from the presence of ions

strong electrolytes

-conducts electricity very efficiently
-all solute particles break apart into ions
-include soluble salts

weak electrolytes

conducts electricity only slightly
-a few solute particles create ions

non-electrolytes

does not conduct electricity
no solute particles create ions
includes soluble but nonionic compounds

strong acids

HCl, H2SO4, HBr, HNO, HI, HClO4

barometer

measures atmospheric pressure

manometer

measures pressure of gas in a container

1 atm=?

760 torr= 101,325 Pa= 101.325 kPa

V and T are ___ proportional. law?

directly, one goes up the other goes up.
Charles law

P and V are ___ proportional. Law?

inversely. boyles law

V and n are ___ proportional. Law?

directly. Avogadro's

P and T are ___ proportional. law?

directly. Gay-Lussac's

will the values be the same of two gases if they have the same volume and temp.- Kinetic energy

same because it depends on the temp
KE=(3/2)RT

will the values be the same of two gases if they have the same volume and temp- Particle velocity

same because it doesn't depend on mass and all the other conditions are the same

will the values be the same of two gases if they have the same volume and temp- density

different D=m/v. since the mass is different it wont be the same

will the values be the same of two gases if they have the same volume and temp-pressure

same because it depends on temp and volume which are the same

PV=nRT

ideal gas law

When gas is collected using water displacement, there is always a ____

mixture of gases

law of conservation of energy

energy can be converted but not created or destroyed

exothermic

energy is produced in reaction, flows out of system (-)

endothermic

energy is consumed by the reaction, flows into the system (+)

work

force acting over a distance

calorimeter

devise used to experimentally find the heat associated with a chemical reaction

heat capacity= ?

heat absorbed (J)/ increase in T (C or K)

ΔE=?

q+w= q-PΔT

ΔH=?

Sp x m x ΔT

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