WA 04.docx - Name Brandon Moyer College ID Thomas Edison State University General Chemistry I(CHE-111 Section no Semester and year Written Assignment 4

WA 04.docx - Name Brandon Moyer College ID Thomas Edison...

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Name: Brandon Moyer College ID: Thomas Edison State University General Chemistry I (CHE-111) Section no.: Semester and year: 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) a.2H2+ 2O → 2H2Ob.Hydrogen and oxygen combine to form waterc.H2and O2d.H2O or water 2.Balance the following equations: (18 points)a.2C + O22COb.2CO + O22COc.2Na + 2H2O H2+ 2NaOHd.Zn + 2HCl ZnCl2+ He.2NaOH + H2SO42H2O + Na2SOf.2NH3+ 3CuO 3Cu + N2+ 3H23.Calculate the mass in grams of iodine (I2) that will react completely with 20.4 g of aluminum (Al) to form aluminum iodide (AlI3). 2 2 4 O (5 points) 3I 2 + 2Al → 2AlI 3 20.4g of Al x 1 mol of Al/26.7g Al = .756 mol Al .756 mol Al x 3 mol I 2 / 2 mol Al = 1.134 mol I 2 1.134 mol x 253 g I 2 / 1 mol I 2 = 287.8 g I 2 1 Copyright © 2018 by Thomas Edison State University. All rights reserved.
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