Exam 1 Chem 1100 WS07

Exam 1 Chem 1100 WS07 - Name: _ Student #: _ A. For each of...

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Name: _________________________________ Student #: _____________ A. For each of the following compounds, draw Lewis structures and indicate the geometry about the central atom(s). (3 points for the Lewis structure, 1 point for correct geometry.) CBr 4 HPO (hint: P is the central atom) Geometry: _____________________ Geometry: _____________________ SOCl 2 (hint: S is the central atom) AsCl 3 Page 1
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Geometry: _____________________ Geometry: _____________________ B. Calculate the energy of light with wavelength 420 nm (4 points, you must show all work to receive credit!)(1 m = 1 a 10 9 nm): C. Ethanol has is used as an alternate fuel for motor vehicles. Ethanol is combusted according to the equation C 2 H 6 O + 3O 2 a 2CO 2 and 3H 2 O If 1000 g of ethanol are combusted according to the equation above, how much CO 2 (in grams) would be produced? (5 points, you must show all work to receive credit!) . Multiple-choice questions are worth 3 points each. Choose the response which best answers the question or completes the statement. 1. Which of the following substances are classified as compounds? I. Dinitrogen monoxide II. Steam III. Deodorant soap IV. Mayonnaise V. Helium A) I only B) I and II C) I and III D) III and IV E) all are compounds 2. What is the name of the compound formed when magnesium and bromine combine? A) Magnesium bromide B) Bromium magnesium C) Dibromomagnesium Page 2
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D) Dimagnesium bromide E) Magbro 3. Consider the following (unbalanced) chemical equation: C 2 H 4 + O 2 CO + H 2 O When the equation is properly balanced, what should the coefficient in front of the CO be? A)
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This test prep was uploaded on 03/29/2008 for the course CHEM 1100 taught by Professor Dr.brianganley during the Spring '08 term at Missouri (Mizzou).

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Exam 1 Chem 1100 WS07 - Name: _ Student #: _ A. For each of...

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