Complete the table below
Key Term
Definition in your own words
Example (if applicable)
(Draw a picture)
Endothermic Reaction
Exothermic Reaction
Reactants
Products
Chemical bond
Bond Energy
The bond energy of O-H is 464 kJ/mol. What is the total bond energy of 2OH?
If the total bond energy of the reactants is less than the total bond energy of the products, the reaction is exothermic/endothermic?
Describe the components of a chemical reaction system.
Look at the graphs below. What does the purple line represent?
Review the reaction of hydrogen gas and oxygen gas to form water and determine the purpose of the glowing splint. (Lesson 6 page 2)
Describe what’s happening to the bond energy of the products and reactants in the picture below (Lesson 2 page 10)
List the number and name of the bonds broken and formed in the following reaction.
What happens when a catalyst is added to a chemical reaction?
A pot of water is placed on a burner on a gas stove to heat. Which part is the source of the activation energy required (the flame/the water), and is this reaction endothermic or exothermic?
As heat energy _____, molecular speed ____.
Directions: Please answer the following essay questions. Use 2-5 sentences to explain your thinking.
1.) A scientist wants to perform a reaction in a vacuum chamber to control the experiment as much as possible and to prevent other variables from impacting the reaction. The scientist is trying to determine if the reaction is endothermic or exothermic