Chem 110 Final Jay
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Definition for: Reactants
Subtances entering a reaction
Definition for: Products
Subtance formed from reactants
Definition for: Chemical Equation
Is a shorthand expresion for a chemical change
Definition for: Balanced equation
Contains the same number of each kind of atom on each side of the equation
Definition for: Combination reaction
two reactants combine to give one product
Definition for: Single-Displacement reaction
one element reacts with a compound to replace one of the elements of that compound, yielding a different element and a diffrent compound
Definition for: Double-Displacement Reaction
two compounds exchange partners with each other to produce tow diffrent compounds
Definition for: Exothermic reactions
Reations that liberate (release) heat
Definition for: Endothermic reations
Reactions that absorb heat
Definition for: Heat of reation
The quantity of heat produced by a reation
Definition for: Hydrocarbons
Mixtures that contain only hydorgen and carbon
Definition for: Activation energy
The amount of energy to start a chemical reation
Definition for: Molar Mass
The Sum of the atomic masses of all the atoms in an element or compound
Definition for: Stoichiometry
the area of chemistry that deals with quantitative relationships among reatants and products is knows as Stoichimetry.
Definition for: Theoretical yield
The reaction is the calculated amount of product that can be botained from a given amount of reactant, according to the chemical equation.
Definition for: Actral yield
is the amount of product that we finally obtain
Definition for: Percent yield
is the ration of the actual yield to the theoretical yield multiplied by 100
Definition for: Kinetic-Molecular Theory
- A theory based how gases behave.
- States that
- 1. Gases consist of tiniy particles
- 2. The sistance between particles is large compared with the size of the particles themselves
- 3. Gas particles have no attraction for one another
- 4. Gas particles mone in straight linesin all direction, colliding freqently with one another and with the wall of the container
- 5. no energy is lost by the collision of a gas particle with another gas particle or the walls of the container. All colitions are elastic
- 6. the average conetic energy (KE) of a particle is expressed by the equation
Definition for: Ideal gas
A gass that behaves exactly as outlined by the theory (KMT).
The ability of two or more gasses to mix spontaneoulsly until they form one the form a uniform mixture.
is the process by which a gas molecules pass thorugh a very small hole
Define: Graham's Law of effusion
the rate of effusion was dependent on the density of a gas.
is defined as force per unit area.
Define: Atmospheric Pressure
the gases in the atmosphere exert a pressure known as
A device that measures atmosphere pressure
Define: 1 atmosphere
is the pressure exerted by a column of mercury 760 mm high at a temperature 0 degree celcius
Define: Boyle's law
The relationship of a P and V is known as Boyle's Law. V 1/p or P1V1 = P2V2
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