AP Chem Unit 2 test

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polar molecule

a molecule that has an uneven dispersion of charge


the interaction between the dissolving molecules and water molecules


what is being dissolved


what it is being dissolved in


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


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

strong acids

HCl, H2SO4, HBr, HNO, HI, HClO4


measures atmospheric pressure


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

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


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


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


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


force acting over a distance


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

heat capacity= ?

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


q+w= q-PΔT


Sp x m x ΔT

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