exam1practice - City College, Chemistry Department...

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Chemistry 10301, sections E*, Prof. T. Lazaridis First Midterm exam, Sep 29, 2010 Last Name: _____________________________________________ First Name: _____________________________________________ SSN last 4: ______________________________________________ Note: There are 7 questions in this exam. Fill in your answer in the blank space provided immediately following each question. Half a point will be subtracted every time you report a numerical result with an incorrect number of significant figures. A copy of the periodic table is attached. Good luck! 1. (20) a. (4) What is the name of the compound K 2 SO 4 ? Potassium Sulfate b. (4) Is the above compound ionic or molecular? Ionic c. (4) What is the molar mass of the above compound ? 2*39.10+32.07+4*16.00= 174.27 g/mol d. (4) What is the chemical formula of calcium carbonate? CaCO 3 e. (4) Give the names of the elements with the following atomic symbols: B: Boron S: Sulfur Fe: Iron Mg: Magnesium
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This note was uploaded on 07/21/2011 for the course CHEM 111 taught by Professor Sawyers during the Spring '11 term at Virginia College.

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exam1practice - City College, Chemistry Department...

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