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Chemical Reactions Practice, p. 6

13.	iron + oxygen a. Complete and balance the reaction. b. Classify the reaction. c. If this reaction occurs much slower in the presence of moisture what do we call it? d. This reaction would go even faster if it were performed in a completely oxygen atmosphere. Why?
14.	oxygen gas ozone a. Complete and balance the reaction. b. Classify the reaction. c. Ozone is both good and bad in the environment. Explain this.