1 Name: Date: Period: Project Description: In this project, you will be ...

B.) Using the chemical equation above, what gas was produced in Bag #3?9.) Which reactions in this lab were exothermic? How do you know that they were exothermic?10.) Which reactions in this lab were endothermic? How do you know that they were endothermic?QUESTIONS ON ENERGY GRAPHS FOR CHEMICAL REACTIONSAdapted from http://www.kentchemistry.com/links/Kinetics/PEDiagrams.htm11.) What is activation energy?12.)Given the reaction: A + B --> C. Does the diagram show an endothermic or exothermic reaction? Why or why not?13.) The reaction that forms water is below:2 H 2 (g) + O 2 (g) --> 2 H 2 O(l) + 571.6 kJIn this reaction, one of the products is heat, meaning, heat is released in thisreaction.a.) Is this reaction endothermic or exothermic? Why or why not?b.) Which graph (to the right) is the correct graph to represent the reactionthat forms water? Why did you pick that graph?14.) The diagram below represents a chemical reaction. Use this diagram toanswer the following questions.a.) Is this reaction an endothermic or exothermic reaction? Howdo you know?b.) Which letter represents the activation energy? How do youknow?c.) Using the letters in the diagram (i.e. A, B, C, or D) whatformula would you use to figure out the difference between theenergy of the reactants and the energy of the reactants?d.) Using the letters in the diagram (i.e. A, B, C, or D) whatformula would you use to figure out the amount of activationenergy needed to start the reaction?12