Class: Date: ID: A hem 136 chapter 1-3 test 58.6 Multiple Choice Identify the letter of...

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Class: Date: ID: A hem 136 chapter 1-3 test 58.6 Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. 1. If 1.00 mol of Na combines with 1.00 rol of CI to form NaCI, how many formula units of NaCl are present? a. 6.02 x 104 b. 6.02 x 10 c. 3.01 x 10 d. 1.00 2. For the reaction CH.(g)+ 20,g)-CO:) + 2H 0(g), calculate the percentage yield of carbon dioxide if 500 g of methane react with excess oxyy en to produce 1150. g of carbon dioxide 89.14% b. 96.78% 3. If one knows the mass and molar mass of reactant A and the molar mass of product D in a chemical reaction, one can determinc the mass of product D produced by using the mole ratio of D to A from the chemical oquation. clectron configurations of the atoms in A and D. estimating bond energies involved in the reaction d. group numbers of the elements of A and D in the periodic table. Calculate the number of moles of bromine present in 128 5 ml of Br2(), whose density is 3.12 g/mL. c. 92.76% d. 83 88% a. a. b. C. 4. 0.400 mol b. 0.257 mol d. 0.128 mol 2.50 mol a. e. C. 0,809 mol 5. The actual vicld of a chemical reaction is cqual to the percentage yield b. greater than the theoretical yield. a. c. Iess than the theoretical vield d. greater than the percentage yield 6. A compound contains 259.2 g of F and 40 8 g of C. What is the empirical formula for this compound? CF. b. CF. a. CF d. CF 7. A compound contains 42.9g of C and 57.1 g of O. What is the empirical formula for this compound? C. CO c. CO: d. CO a. b. CO. 8. What is the percentage of OH in Ca(OH),? a. 66.6% C. 75% b. 90.1% d. 45.9% 9. What is the empirical formula for a compound that is 43.6% phosphorus and 56 4% oxygen? C. P.O. d. PO, a. PO, b. РО 10. How many atoms of fluorine are in a mo'ecule of carbon tetrafluoride, CF? c. 5 a. d. 2 b. 4 Class: Date: ID: A hem 136 chapter 1-3 test 58.6 Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. 1. If 1.00 mol of Na combines with 1.00 rol of CI to form NaCI, how many formula units of NaCl are present? a. 6.02 x 104 b. 6.02 x 10 c. 3.01 x 10 d. 1.00 2. For the reaction CH.(g)+ 20,g)-CO:) + 2H 0(g), calculate the percentage yield of carbon dioxide if 500 g of methane react with excess oxyy en to produce 1150. g of carbon dioxide 89.14% b. 96.78% 3. If one knows the mass and molar mass of reactant A and the molar mass of product D in a chemical reaction, one can determinc the mass of product D produced by using the mole ratio of D to A from the chemical oquation. clectron configurations of the atoms in A and D. estimating bond energies involved in the reaction d. group numbers of the elements of A and D in the periodic table. Calculate the number of moles of bromine present in 128 5 ml of Br2(), whose density is 3.12 g/mL. c. 92.76% d. 83 88% a. a. b. C. 4. 0.400 mol b. 0.257 mol d. 0.128 mol 2.50 mol a. e. C. 0,809 mol 5. The actual vicld of a chemical reaction is cqual to the percentage yield b. greater than the theoretical yield. a. c. Iess than the theoretical vield d. greater than the percentage yield 6. A compound contains 259.2 g of F and 40 8 g of C. What is the empirical formula for this compound? CF. b. CF. a. CF d. CF 7. A compound contains 42.9g of C and 57.1 g of O. What is the empirical formula for this compound? C. CO c. CO: d. CO a. b. CO. 8. What is the percentage of OH in Ca(OH),? a. 66.6% C. 75% b. 90.1% d. 45.9% 9. What is the empirical formula for a compound that is 43.6% phosphorus and 56 4% oxygen? C. P.O. d. PO, a. PO, b. РО 10. How many atoms of fluorine are in a mo'ecule of carbon tetrafluoride, CF? c. 5 a. d. 2 b. 4

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