Name:______________________________________
Part 1: Exothermic and Endothermic Reactions
Go to: http://www.mhhe.com/physsci/chemistry/essentialchemistry/flash/activa2.swf
1.)
2.)
3.)
4.)
Listen to the introduction
Play and listen to the exothermic and endothermic reaction animation
Draw an exothermic and endothermic energy profile in the following boxes
Make sure you label the axes, reactants, products, activation energy, activated complex,
and heat of reaction.
Exothermic Reaction
Endothermic Reaction
Part 2:
Exothermic and Endothermic Reactions
Go to the following site to see an example of an exothermic and endothermic reaction:
Go to Mr Kent’s Chemistry Page - http://www.kentchemistry.com/links/Matter/EndoExo.htm
and answer the following questions in your own words.
Which two products make an exothermic reaction?
Which two products make an endothermic reaction?
Part 3:
Go to the website http://www.gcsescience.com/rc11.htm and answer the following questions:
1. A reaction that releases energy is _____________________. A reaction that absorbs
energy is _____________________.
2. Most reactions are _____________________.
3. The bonding making process is ________________________. The bond breaking process
is __________________________.
4. The total energy required to break the H-H and the Cl-Cl bonds is
____________________. The energy released when the 2 H-Cl bonds are formed is
____________________. This creates a net energy of _______________________.
5. List the four examples of exothermic processes
Part 4
Look at http://www.topspeedracer.com/how-airbags-work.html to find...
1.
Explain how an airbag works.
2.
Write a word equation to describe one chemical reaction that occurs to inflate an
airbag.
Go to http://en.wikipedia.org/wiki/Dynamite to find out the following reaction
3. What was Alfred Nobel’s most famous invention?
4. Describe how an explosive is able to split large volumes of rock.