1A_exam_2008_Spring_Final

1A_exam_2008_Spring_Final - Name _ CHEMISTRY 1A Spring 2008...

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1 Name _____________________________________ CHEMISTRY 1A Spring 2008 Final Exam YOU MIGHT FIND THE FOLLOWING USEFUL; =+ 0.008314 kJ ΔH° ΔE° (Δn)RT R = K• mol ⎡⎤ =− + Δ ⎢⎥ ⎣⎦ cal w 0.00418 kJ q C m T Δ H ° rxn = Σ Δ H f ° (products) Σ Δ H f ° (reactants) Electronegativities H 2.2 Li Be B C N O F 0.98 1.57 2.04 2.55 3.04 3.44 3.98 Na Mg Al Si P S Cl 0.93 1.31 1.61 1.9 2.19 2.58 3.16 K Ca Ga Ge As Se Br 0.82 1.0 1.81 2.01 2.18 2.55 2.96 Rb Sr In Sn Sb Te I Xe 0.82 0.95 1.78 1.96 2.05 2.1 2.66 2.6 Cs Ba Tl Pb Bi Po 0.79 0.89 2.33 2.02 2.0 2.2
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2 Answer the following by writing the word, words, letter, letters or number in each blank that best completes each sentence. (1 point each blank) 1. __________________________ are elements that have some but not all of the characteristics of metals. 2. The elements in group 1 on the periodic table are called __________________________ . 3. __________________________ are the elements in groups 3 through 12 (the “B” groups) on the periodic table. 4. __________________________ are atoms that have the same number of protons but different numbers of neutrons. They have the same atomic number but different mass numbers. 5. A chemical formula that includes positive integers that describe the simplest ratio of the atoms of each element in a compound is a(n) __________________________ . 6. A(n) __________________________ is a charged collection of atoms held together by covalent bonds. 7. __________________________ are compounds that have the same molecular formula but different molecular structures. 8. A(n) __________________________ is the amount of substance that contains the same number of particles as there are atoms in 12 g of carbon-12. 9. A(n) __________________________ reaction is a rapid oxidation accompanied by heat and usually light. 10. __________________________ is any chemical change in which at least one element gains electrons, either completely or partially. 11. A(n) __________________________ is a substance that produces fewer hydroxide ions in water solution than particles of the substance added. 12. __________________________ energy is a retrievable, stored form of energy an object possesses by virtue of its position or state. 13. A(n) __________________________ is a change that leads to heat energy being released from the system to the surroundings.
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3 14. The heat involved in the formation of one mole of substance from its elements in their standard states at a constant pressure of 1 atm and a constant temperature of 298.15 K is called __________________________ . 15. __________________________ is the condition of an atom that has at least one of its electrons in orbitals that do not represent the lowest possible potential energy.
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This note was uploaded on 03/03/2012 for the course CHEM 100 taught by Professor Mark during the Fall '06 term at Monterey Peninsula College.

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1A_exam_2008_Spring_Final - Name _ CHEMISTRY 1A Spring 2008...

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