What is 1) collision 2) sufficient energy 3) proper alignment / orientation?
100
As the temperature increases, what happens to the rate of reaction?
What is INCREASES?
100
A chemical reaction has reached equilibrium when
a) The reverse reaction begins
b) The forward reaction stops
c) The concentrations of the reactants and products become equal
d) The rates of the forward and reverse reaction become equal
What is D) the rates of the forward and reverse reaction become equal?
100
Double arrows in a chemical reaction indicate....
What is a reversible reaction?
100
If you shift the following chemical reaction to the LEFT, which would you have MORE of: 2 H2O ↔ 2 H2 + O2
What is H2O?
200
What is the definition of activation energy?
What is the minimum amount of energy required for a chemical reaction to occur?
200
Name the 4 ways to speed up or slow down a chemical reaction.
What is 1) concentration 2) surface area 3) temperature and 4) catalyst?
200
Give the definition of concentration and name its unit of measurement.
What is the amount of a chemical substance that you have? It is usually measured in moles per liter, which can be shown as mol/L or with [ ].
200
In the FORWARD reaction, the reactants are found on what side of the arrows?
What is the LEFT side?
200
If you added ENERGY to the following reaction, which way would equilibrium shift?
N2 + 3 H2 + heat ↔ 2 NH3
What is RIGHT?
300
Name a real-life example of activation energy.
What is a power button on a phone, turning the ignition in a car, a light switch at your home, etc.?
300
What effect will there be if you increase the concentration of reactants in a chemical reaction?
What is the reaction will SPEED up!
300
Give the definition of chemical equilibrium in terms of RATE of REACTION.
What is EQUAL rates of reaction for the forward and reverse reaction?
300
In the reverse reaction, the products are found on what side of the arrows?
What is the LEFT side?
300
Name one way to shift the following reaction to the RIGHT:
3 F2 + S ↔ SF6
What is increasing the concentration (or amount) of F2 or S?
400
Name one way in which you could speed up a reaction using kinetic energy.
What is increasing the temperature?
400
If a certain chemical reaction is ENDOTHERMIC. Will the reaction SPEED up or SLOW down if you increase the temperature?
What is SPEED up!
400
How do you know if a reaction has reached equilibrium?
a) The reaction looks like it has stopped
b) The reaction looks like it has not started
c) The reverse reaction looks like it has started
d) There is no way to determine a reaction is at equilibrium
What is A) the reaction looks like it has stopped?
400
In an endothermic reaction, heat is being ADDED or REMOVED from the reactants side.
What is ADDED?
400
In the following reaction, if you REMOVED heat, which way would equilibrium shift?
W (aq) + X (aq) ↔ Y (aq) + Z (aq) + heat
What is to the RIGHT?
500
What is something that can be used to speed up a reaction by aiding in proper alignment? (Hint: It is NOT used up during the reaction)
What is a catalyst?
500
If you have a Tums for an upset tummy, what are you doing when you crush it before eating it? Does it speed up or slow down a reaction?
What is increasing surface area and SPEED up!
500
Give the definition of chemical equilibrium in terms of concentration of reactants and products.
What is CONSTANT or unchanging concentrations of reactants and products. (They can be equal but usually are not)
500
If you are given a data set with TIME and CONCENTRATION, how could you tell that you are looking at the forward reaction?
What is the CONCENTRATION of the products would INCREASE whereas the CONCENTRATION of reactants would decrease?
500
In the following reaction, if you REMOVED heat, would the concentration of X (aq) INCREASE or DECREASE?
W (aq) + X (aq) ↔ Y (aq) + Z (aq) + heat