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Bond Energies
Factors Affecting Reaction Rate
Factors Affecting Equilibrium
Bond Length
Other
100
Define Energy
What is the capacity for doing work or supplying heat
100
If you increase the pressure, what will happen to the rate of the reaction?
What is it will increase.
100
Define Le Chatelier's Principle
What is if stress is applied to a system in dynamic equilibrium, the system changes to relieve the stress
100
What happens to the bond length as the number of bonds increases?
What is it gets shorter
100
Are the melting points of molecular solids relatively low or high?
What is low.
200
Define Chemical Potential Energy
What is the energy stored within the structural units of chemical substances
200
What is the name of the catalyst in the human body that speeds up the rate of chemical reactions?
What is an enzyme
200
What are the three stresses that upset the equilibrium?
What is the changes in the concentration of reactants or products, changes in temperature, and changes in pressure.
200
Is a triple, single, or double bond the weakest?
What is single
200
What are 3 examples of covalent gasses?
What is O2, CO2, and H2S
300
Define Activation Energy
What is the amount of energy needed to start a reaction
300
Name the 6 factors that affect the rate of a reaction
What is temperature, pressure, surface area, catalysts, concentration, and particle size
300
When you add product, what does it do to a reversible reaction?
What is it pushes the reaction in the direction of the reactants.
300
Define Bond Length
What is the distance from the center of one nucleus to the center of another nucleus of two bonded atoms.
300
Define the Collision Theory
What is Atoms, ions, and molecules can react to form products when they collide, provided that the particles have enough kinetic energy.
400
Is the formation of an ionic compound exothermic or endothermic?
What is Exothermic
400
If the concentration of reactants increases, what will happen to the reaction rate and why?
What is the reaction rate would increase because there would be more collisions per second
400
Increasing the temperature causes the equilibrium position of the reaction to shift ____.
What is in the opposite direction
400
As the bonds of atoms get closer together, what happens to the bond energy to separate them?
What is more energy is needed
400
What is an example of a covalent solid?
What is Paraffin
500
Name the 3 types of bonding from weakest to strongest
what is dispersion, dipole-dipole, and H-bonding
500
What does a catalyst do?
What is it lowers the activation energy barrier.
500
Which of the three stresses only affect an equilibrium that has an unequal number of moles of gasses?
What is pressure
500
Why does bond dissociation energy indicate the strength of a chemical bond?
What is because a direct relationship exists between bond energy and bond length.
500
What does Rate measure?
What is the speed of any change that occurs within an interval of time.