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Chem 2S Final (Sum)

Chemistry 2nd Semester Final Exam

QuestionAnswer
The reactions that occurs in hot packs is an example of a _______ reaction? Exothermic
Does the reaction increase or decrease when temperature increases? Increase
Lemon Juice had a pH of 2. Is it an acid or base? Acid
Explain why freezing is exothermic (in terms of kinetic energy and order) L to S...... Loses energy to get colder.
Concentrated Large amount of solute
Intermolecular Force (IMF'S) Between weak molecules
Products of exothermic reaction have ______(less/more) energy than the reactants. Less Energy
Kinectic energy is directly proportional to _____. Temperature
Which has a stronger attractive force at room temperature.. a gas, liquid, or solid? Solid
Which state of matter is the best conductor? Solid
Which state of matter is the worst conductor? Gas
How do you know if something is Exothermic? If it feels warm.
Calorie 1 Calorie = 4.184J
How do you know when something is Endothermic? If it feels cold.
Describe specfic heat The amount of heat needed to raise the temperature of 1g by 1'C.
Bleach has a pH of 13 is it an Acid or Base? Base
The reaction that occurs in cold packs is an example of a ______ reaction Endothermic
What are the ideal gas law varibles? P=Pressure, T= Temperature, V = Volume
Describe Gay- Lussac's Law As Temp increase Press Increases. As Temp decreases press decreases.
Describe Boyle's Law As volume decreases press increases. As volume increases pressure decreases.
Describe Charles Law As the Temp increases volume increases. As the Temp decreases Volume decreases.
An unstable solution with more solute than an saturated solutions is called_____? Supersaturated
Created by: Mrs. Corey
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