NAME _______________________________________

Chemical Reactions Practice, p. 8

17.	hydrogen gas + oxygen gas water vapor a. Complete and balance the reaction. b. Classify the reaction. c. Why would hydrogen be used in blimps? d. Why would helium be used now?
18.	sodium metal + water a. Complete and balance the reaction. b. Classify the reaction. c. Based on the trend, how violently would cesium react? d. Why do lithium, sodium and potassium all react the same way?