Study Guide for Chemical Changes

Here are the questions from the study guide we did in class (they may be out of order) :

1. What are four signs that a chemical change has taken place?
2. What are four ways to prevent a chemical change?
3. Why is the Declaration of Independence in a chamber of helium? Explain.
4. Explain what went wrong with the Hindenburg?
5. Explain what exactly happened to get the balloon to inflate during our lab.
6. How is the Statue of Liberty an example of a chemical change?
7. What is a good way to test if a rock has calcium carbonate?
8. What is an example of a substance that is combustible?
9. What is a double replacement reaction?
10. What is an ion?
11. Explain what it means when a substance is stable.
12. What does reactivity have to do with chemical substances?
13. Name four things that have chemicals in it.
14. How is rust formed?

Chemical Properties Test

We will be having our unit assessment over chemical properties on WEDNESDAY of this week. Tomorrow in class we will have a study guide session along with a hard copy. Study hard, lets start out this marking period on the top :)