Progress test revision

Today we're going to do a bit of summary revision stuff for the progress test tomorrow. Answer the following in your books:

1. What is collision theory?
2. What is the activation energy in a reaction? How does it change when you add a catalyst?
3. Give an example of an exothermic and an endothermic reaction:
4. Briefly describe the Haber process, and explain what it produces:
5. How would you get a higher yield from a reversible reaction which is exothermic going forward?
6. If the atomic number for He is 2, how many electrons would this atom contain?
7. What particles make up the nucleus?
8. Explain what fission and fusion are.
9. This diagram shows a Helium isotope emitting a beta particle. How could you write an equation to show this?                                                               
10. What are the three types of radiation?
11. Finally, try and finish this activity. What charges attract each other? What name would you give to the positive and negative particles?