Visualize Chemical Reactions
A diagram that shows reaction progress and energy level.
What is a reaction coordinate diagram?
This type of chemical reaction can be represented by this equation: A + B + energy --> C + D
What is an example of an endothermic reaction?
This lowers the activation energy by changing the reaction pathway to avoid the highest energy state of the reaction.
What can a catalyst do?
This type of chemical reaction can be represented by this equation: A + BC --> AC + B.
What is a single displacement or replacement reaction?
This same equation is unbalanced as shown below (balance this chemical equation!):
Na + O2 => Na2O
How can you unbalance this chemical equation (this is the balanced equation)?
4Na + O2 => 2Na2O
It is represented by ∆E, and is the difference between the starting energy and final energy.
What is the overall change in energy?
This type of reaction curves up and dips down when shown on the reaction coordinate diagram.
What is an Exothermic Reaction?
How can the rate of a chemical reaction change?
This type of chemical reaction can be represented by this equation: AB + CD --> AD + CB .
What is a double displacement or replacement reaction?
This same equation is unbalanced as shown below (balance this chemical equation!):
H3PO4 + KOH => K3PO4 + H2O
How can you unbalance this chemical equation (this is the balanced equation)?
H3PO4 + 3KOH => K3PO4 + 3H2O
It is represented by Ea and is the minimum amount of energy required to start a chemical reaction.
What is activation energy?
This type of reaction curves all the way up, and dips slightly down when shown on the reaction coordinate diagram.
What is an endothermic reaction?
This theory states that the frequency of the particles colliding with each other successfully and reacting determines the reaction rate.
What is the collision theory?
This type of chemical reaction can be resembled by this model:
Yellow ball and Green ball + Blue ball => Yellow ball and Blue ball + Green ball
What is an example of a model of a single displacement or replacement reaction?
This same equation is unbalanced as shown below (balance this chemical equation!):
Al2O3 => Al + O2
How can you unbalance this chemical equation (this is the balanced equation)?
2Al2O3 => 4Al + 3O2
The starting materials or input for a chemical reaction.
What is a reactant?
This type of reaction requires a greater input of energy.
What is an endothermic reaction?
What is the main purpose of a catalyst?
This type of chemical reaction can be represented by this equation: A + B --> AB.
What is a synthesis or combination reaction?
This same equation is unbalanced as shown below (balance this chemical equation!):
P + O2 => P4O10
How can you unbalance this chemical equation (this is the balanced equation)?
4P + 5O2 => P4O10
What is a product?
This type of reaction has a greater output of energy.
What is an exothermic reaction?
This changes the activation energy (Ea), but not the overall change in energy (∆E).
What is a catalyst?
This type of chemical reaction can be represented by this equation: AB --> A + B.
What is a decomposition reaction?
This same equation is unbalanced as shown below (balance this chemical equation!):
AgF + CaCl2 => AgCl + CaF2
How can you unbalance this chemical equation (this is the balanced equation)?
2AgF + CaCl2 => AgCl + 2CaF2