Practice Questions for Final Exam For Students

Practice Questions for Final Exam For Students - These...

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These problems are only a sampling of some of those you may see on the final. You should concentrate on knowing the key concepts and skills on each chapter, rather than memorizing the ‘style or type’ of problem you see here. 1. A naturally occurring element consists of two isotopes. The data on the isotopes: isotope #1 68.5257 u 60.226 % isotope #2 70.9429 u ?????? % Calculate the average atomic mass of this element 2. Consider the atoms of Mg 26 12 and Al 27 13 . Both of these species have the same 3. The set below featuring one alkali, one alkaline earth, one halogen, one lanthanide and one actinide element is: a. cesium, barium, bromine, erbium, samarium b. francium, beryllium, iodine, terbium, berkelium c. lithium, manganese, fluorine, lanthanum, vanadium d. potassium, radium, iodine, lutetium, platinum e. rubidium, strontium, chlorine, thorium, plutonium 4. What is the correct name for the compound IBr 3 ? 5. What is the correct name for the compound CuHSO 4 ? 6. Which balanced equation below correctly represents the fact that solid BaCO 3 reacts with a water solution of HNO 3 to form dissolved Ba(NO 3 ) 2 , CO 2 gas, and water? 7. Which response gives the correct number of significant figures for all three of the following measurements? #1) 7.103 cm #2) 0.00005 inch #3) 1.3400 x 10 -4 dm 3 a. 3, 5, and 4 b. 3, 1, and 3 c. 4, 1, and 3 d. 4, 1, and 5 e. 4, 5, and 5
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8. The number, 0.02100, is properly expressed in scientific notation as 9. How many micrometers are there in 3.672 km? 10. A 55.25 gallon container was filled with an industrial solvent whose density is 1.146
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This note was uploaded on 01/12/2012 for the course CHEM 103 taught by Professor Jeffashley during the Fall '10 term at Philadelphia.

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Practice Questions for Final Exam For Students - These...

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