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Practice Exam II - Survey of Chemistry I | CHEM 1151, Exams of Chemistry

Clayton State UniversityChemistry

Material Type: Exam; Class: Survey of Chemistry I; Subject: Chemistry; University: Clayton State University; Term: Unknown 2006;

Typology: Exams

Pre 2010

Uploaded on 08/04/2009

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CHEMISTRY 1151
Practice EXAM II
Name___________________________________
This practice exam is designed just like a second exam for the course. You should
attempt this exam without the use of notes, books, or help and you should give yourself
only the amount of time equal to the class time.
When finished, grade your exam using the exam answers, but do not look at the answers
before you attempt the exam. You should then be able to tell how well prepared you are
for the second exam of the course. Use this as an evaluation tool to help you decide on a
withdrawal decision if our second exam should be after the drop date. Good luck, let me
know if I can be of any assistance.
pf3
pf4
pf5
pf8

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CHEMISTRY 1151

Practice EXAM II

Name___________________________________ This practice exam is designed just like a second exam for the course. You should attempt this exam without the use of notes, books, or help and you should give yourself only the amount of time equal to the class time. When finished, grade your exam using the exam answers, but do not look at the answers before you attempt the exam. You should then be able to tell how well prepared you are for the second exam of the course. Use this as an evaluation tool to help you decide on a withdrawal decision if our second exam should be after the drop date. Good luck, let me know if I can be of any assistance.

  1. Who first proposed the quantum theory (electron energy shells) of hydrogen atoms? a. Bohr b. Rutherford c. Dalton d. Thompson

  2. Consider an ion with the symbol X+3^ from the representative elements. This element would most likely be a member of group… a. I b. II c. III d. IV e. V f. other

  3. Element #117 has not yet been synthesized or discovered. Which group on the periodic table would element #117 belong to? a. IA b. IIA c. VIA d. VIIA e. VIIIA

  4. Both Al+3^ and F¯ are isoelectronic as what Noble Gas? a. 2 He b. 10 Ne c. 18 Ar d. 36 Kr e. 54 Xe

  5. Which member of group VIA of the periodic table is the most nonmetallic? a. 8 O b. 16 S c. 34 Se d. 52 Te e. 84 Po

  6. Which of the following corresponds to the outer electronic configuration of the element with an atomic number of 15? a. 2s^2 2p^4 b. 3s^2 3p^3 c. 2s^2 2p^3 d. 1s^2 2s^2 2p^6 3s^2 e. none of these

  7. If three electrons are gained by an arsenic atom, 33 As, it would be isoelectronic to: a. 20 Ca b. 36 Kr c. 35 Br d. 19 K e. 30 Zn

  8. How many protons would be found in the nucleus of Rb 85 37? a. 37 b. 85 c. 48 d. 29 e. 53

  9. An ion contains 14 protons, 16 neutrons, and 17 electrons. The charge on the ion is: a. -2 b. +2 c. -3 d. +3 e. other

  10. An atom that loses an electron becomes: a. an ion b. a different element c. a different isotope d. worried e. atoms cannot lose electrons and be the same element

  1. Which of the following is not an expected property of ionic substances? a. high melting points b. poor conductors of electricity c. hard and brittle d. dissociate when dissolved in water e. exist mainly as gases and liquids
  2. What is the name for NH 4 Cl? a. ammonium chlorate b. ammonia chloride c. ammonium chloride d. ammonia chlorine e. nitrogen hydrogen chloride
  3. If M is a metal in group IIIA and X is a nonmetal in group VIA, the formula of the ionic compound that results when they combine is: a. MX b. M 3 X 2 c. M 2 X 3 d. MX 2 e. M 2 X
  4. Which molecule contains a multiple covalent bond? a. Br 2 b. F 2 c. H 2 d. ClF e. O 2
  5. What is the name for Li 3 P? a. lithium phosphate b. trilithium phosphate c. trilithium phosphite d. lithium (III) phosphide e. lithium phosphide
  6. What is the name for NaHCO 3? a. sodium bicarbonate b. sodium carbonate c. sodium hydride carbonate d. sodium hydrogen carbon oxide e. none of these are correct 2 5. What is the name for N 2 O 4? (you may use Greek prefixes) a. dinitrogen oxide b. nitrogen dioxide c. nitrogen tetroxide d. dinitrogen tetroxide e. nitrogen oxide
  7. Bromide ions are isoelectronic to: a. 18 Ar b. 10 Ne c. 34 Se d. 54 Xe e. 36 Kr
  1. What is the formula for calcium chloride? a. CaCl b. Ca 3 Cl c. CaCl 3 d. Ca 3 Cl 2 e. CaCl 2
  2. What is the formula for iron (III) hydroxide? a. FeOH 3 b. Fe(OH 3 ) c. Fe 3 OH d. Fe(OH) 3 e. Fe 3 (OH) 3
  3. In a compound like lithium fluoride, you would tend to describe the bond as… a. perfectly covalent b. covalent c. polar d. ionic e. not likely to form
  4. What is the formula for potassium sulfide? a. K 2 S b. KS 2 c. K 2 S 3 d. KS e. K 2 S 2
  5. What is the name for Mg(NO 3 ) 2? a. manganese (II) nitrate b. magnesium nitrite c. manganese nitride d. magnesium nitride e. magnesium nitrate
  6. Choose the pair of names and formulas that do not match: a. SnCl 4 tin (IV) chloride b. Fe 2 (SO 4 ) 3 iron (III) sulfate c. SnO tin (II) oxide d. Cu 2 S copper (II) sulfide e. MgCO 3 magnesium carbonate
  7. The formula for copper (I) sulfite is: a. CuS b. Cu 2 SO 4 c. Cu 2 SO 3 d. CuSO 4 e. CuSO 3
  8. What is the name of Ca(OH) 2? a. calcium hydroxate b. cadmium dihydroxide c. cadmium hydroxide d. calcium oxyhydride e. calcium hydroxide
  9. The symbol for the element with the outer electron configuration of 6s^2 6p^4 is: a. 52 Te b. 84 Po c. 82 Pb d. 85 At e. 50 Sn

a. s b. p c. d d. f e. g

  1. What atom is the first to have a complete second energy level? a. 2 He b. 10 Ne c. 18 Ar d. 9 F e. 17 Cl f. Huh?
  2. What is the outer electron configuration for all elements in group IVA of the periodic table? a. s^1 b. s^2 c. s^2 p^1 d. s^2 p^2 e. s^2 p^3
  3. How many electrons are found in the set of 3p orbitals of bromine? a. 2 b. 3 c. 5 d. 6 e. 1 f. 8
  4. The molecule PF 3 is shaped like a triangular pyramid with the F's at the three corners of the base triangle and the P at the peak position of the pyramid. EXPLAIN clearly if this molecule would be polar or nonpolar.
  5. Explain to me how a line spectrum is created. Tell me the process that takes place to produce the line spectrum. Be complete and clear in your answer. Diagrams are encouraged.
  6. A. If a neutral hydrogen atom has an electron in the second (L) energy level, is the atom: in its ground state; in an excited state; or can’t tell? Explain your answer briefly.

B. If a neutral lithium atom has an electron in the second (L) energy level, is the atom: in its ground state; in an excited state; or can’t tell? Explain your answer briefly Extra Credit: Give yourself extra credit for each correct answer. Refer to the periodic table and supply a best answer for each of the following: A. The symbol of the element with atomic number 39. _____ B. The symbol of the element with an atomic mass closest to 80. _____ C. The atomic mass of the element potassium. _____ D. The element whose neutral atom contains 30 protons. _____ E. The element whose +2 ion contains 30 protons. _____ F. The symbol of an inert gas in period 4. _____ G. The lightest element in group VA. _____ H. A non-metal in group IVA. _____ I. An isotope that most likely has 8 neutrons. (write it like He 4 2 )^ _____ J. A metalloid from period 4. _____ K. An element whose electron configuration ends with __s^2 __p^2 _____ L. An element with six outer shell electrons. _____ M. An element that is a transition metal.

N. An element with a naturally occurring filled set of s & p orbitals. _____ O. The atomic number of the next Noble Gas. _____