[CHM113] 113TApe1sp08

[CHM113] 113TApe1sp08 - Practice Exam 1 CHM 113 Spring 08...

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Practice Exam 1 CHM 113 Spring 08 Information that you may (or may not) find useful: 1 inch = 2.54 cm 1 lb = 453.6 g K = o C + 273.15
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1. What is the name of the Group 7 on the periodic table? A. Halogens B. Alkaline Earth Metals C. Noble Gases D. Alkali Metals 2. Which of the following is not considered a fundamental SI unit of measurement? A. Meter (m) B. Gram (g) C. Candela (Cd) D. Kelvin (K) 3. Which of the following is a STRONG acid? A. Acetic acid B. Phosphoric acid C. Hydrofluoric acid D. Hydrochloric acid 4. What is the oxidation number of Cr in Cr 2 O 7 2- ? A. +3 B. +4 C. +6 D. +7 5. What compound would result from combining Ca and P? A. CaP B. Ca 2 P C. Ca 2 P 3 D. Ca 3 P 2 6. Which of the following compounds is correctly matched with its names? A. NaBr – sodium boride B. MgCl 2 – magnesium dichloride C. CCl 4 – carbon tetrachloride D. BF 3 – boron fluoride 7. Which of the following elemental symbols is INCORRECTLY paired with its name? A. V - valium B. Sn - tin C. Si - silicon D. W - tungsten 8. Which of the following is an INTENSIVE property of a beaker full of acetone? A. Its temperature is 298K B. There are 6.022 * 10 23 molecules of acetone in the beaker C. The total weight of the beaker and the acetone is 7.5 g D. The acetone has a volume of 12 mL
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9. Which of the following is NOT true about an atom of beryllium? A. It has 4 electrons B. It has 4 protons C. It has 5 neutrons D. It has a +2 charge 10. Which of the following is false? A. The empirical formula of a compound is never the same as the molecular formula B. We would expect sodium metal and iodine crystals to react and form an ionic bond C. The "noble gases" are generally very unreactive D. Isotopes have the same number of protons 11. What is the mass of 7.50 mL of AlCl 3 if its density is 4.20 g/mL? A. 1.78 g B. 3.30 g C. 31.5 g D. 11.7 g 12. Which of the following is heaviest? A. 3.51*10 -7 Mg B. 4.87*10 -4 kg C. 0.789 g D. 2.16*10 7 ng 13. Which of the following numbers has 3 significant figures? A. 0.003 m B. 0.24 g C. 43.5 sec D. 250 L 14. Which of the following was NOT a law used by Dalton to derive the atomic theory? A. The law of combining volumes – atoms combine in simple, whole-number ratios B. The law of constant composition – all molecules of the same substance have the same chemical formula C. The law of conservation of matter – the total mass of materials is the same before and after a chemical reaction D. The law of chemical neutrality – atoms have the same number of protons as electrons
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This note was uploaded on 08/12/2008 for the course CHM 113 taught by Professor Anbar during the Spring '06 term at ASU.

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[CHM113] 113TApe1sp08 - Practice Exam 1 CHM 113 Spring 08...

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