Rn 7s2 5f14 6d10 7p1 d rn 7s2 6d10 7p1 e rn 7s2 4f14

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Unformatted text preview: 3 2 ½ B. 3 3 1 ½ C. 5 2 - 2 - ½ D. 1 0 0 ½ E. 2 1 - 1 ½ ____ 15. Balance the following reaction using the smallest set of whole numbers. What is the coefficient of O2? ___C12H22O11(l) + ___O2(g) à༎ ___CO2(g) + ___H2O(g) A. 35 B. 17.5 C. 12 D. 24 E. none of these ____ 16. If the partial pressure of carbon dioxide is 0.04 atm at STP, the gas is 11% carbon dioxide (CO2) by mass, and there is only one other species of gas present, which of the following could be the other species of gas? A. Hydrogen (H2) B. Methane (CH4) C. Oxygen (O2) D. Chlorine (Cl2) E. Helium (He) ___ 17. Which of the following compounds is a strong electrolyte? A. H2O B. NH3 C. O2 D. NaOH E. CH3COOH (acetic acid) 5 ____ 18. All of the following are properties of tin. Which one is a chemical property of tin? A. Tin can be hammered into a thin sheet. B. At - 40 oC a sheet of tin crumbles to a gray powder. C. Tin melts at 231.9 oC. D. When a bar of tin is bent, it emits an audible “cry”. E. Tin erodes when added to hydrochloric acid, and a clear gas forms. ____...
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