PE1a - Exam 1 Part 2. Balancing Equations (33%) Balance the...

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Unformatted text preview: Exam 1 Part 2. Balancing Equations (33%) Balance the following chemical equations. Write the balanced equation in the space provided. Circle your answer. 1. B2O3 + HF BF3 + H2O 2. H2 + O2 3. C3H8O + O2 4. CS2 + Cl2 CCl4 + S2Cl2 5. NH4NO3 N2 + O2 + H2O H2O H2O + CO2 3 Exam 1 1. Part 3. Calculations (33%) The density of methanol (CH4O) is 0.7918 g/mL. How many milliliters (mL) of ethanol are needed to produce 10.0 g of CO2 in the following reaction? Circle your answer. CH4O + O2 CO2 + H2O 4 KEY B B A A D A A A C D Exam 1 Part 2. Balancing Equations (33%) Balance the following chemical equations. Write the balanced equation in the space provided. Circle your answer. 6 HF 2 BF3 + 3 H2O 1. B2O3 + 2. 2 H2 + O2 3. 2 C3H8O + 9 O2 4. CS2 + 5. 2 NH4NO3 3 Cl2 2 H2O 8 H2O + 6 CO2 CCl4 + S2Cl2 2 N2 + O2 + 4 H2O 3 Exam 1 1. Part 3. Calculations (33%) The density of methanol (CH4O) is 0.7918 g/mL. How many milliliters (mL) of ethanol are needed to produce 10.0 g of CO2 in the following reaction? Circle your answer. CH4O + O2 CO2 + H2O 2 CH4O + 3 O2 10.0 g CO2 mole CO2 44.01 g CO2 2 CO2 + 4 H2O 2 mole CH 4O 2 mole CO2 = 9.19 mL 4 32.04 g CH 4O mole CH 4O 1 mL CH 4O 0.7918 g CH 4O ...
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This note was uploaded on 02/29/2012 for the course CHM 111 taught by Professor Colyer during the Summer '08 term at Wake Forest.

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