CHEM-121_Written Assignment 4 - Thomas Edison State College...

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Thomas Edison State College General Chemistry I with Labs (CHE-121) Section no.: OL009 Semester and year: Feb2015 Written Assignment 4: Chemical Reactions Answer all assigned questions and problems, and show all work. 1 Write the (a) balanced equation for the formation of liquid water from hydrogen and oxygen gas, and use it to explain the following terms: (b) chemical reaction, (c) reactant, (d) product. (12 points) O 2
2 Balance the following equations: (18 points) 2 2 4 O
3 Calculate the mass in grams of iodine (I 2 ) that will react completely with 20.4 g of aluminum (Al) to form aluminum iodide (AlI 3 ). (5 points)
4 The annual production of sulfur dioxide from burning coal and fossil fuels, auto exhaust, and other sources is about 26 million tons. The equation for the reaction is S(s) + O 2 (g)

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