Equilibrium and Kinetics Bell Ringers Part 1 – Show all Work 3/7/11 – Read Kinetics Standards and ppt overview HW: Read 17.1-.2, pp. 529-541, 17.4, pp. 546-547 Q pp. 554-555, #34, 37, 48-49, 62, 66, 71 N2+3H2 → 2NH3 If 6 liters of hydrogen gas are used, how many liters of nitrogen gas will be needed for the above reaction at STP? A 2 liters B 3 liters C 4 liters D 12 liters Chlorine, an element added to city water systems and swimming pools to kill bacteria, is a highly reactive group 7A element. Which of the following valence electron configurations accounts for this characteristic? A. filled p orbital B. partially filled p orbital C. filled s orbital D. partially filled s orbital 3/8/11 – Georgia Video Notes Kinetics What do the elements sodium (Na) and fluorine (F) have in common? A. Their first ionization energies are similar. B. They are classified as metals. C. They are nonreactive. D. The most common ions of each have the same electron configuration. Ionic compounds are useful in conducting electricity when they are dissolved in water. What are such compounds called? A. metals B. electrolytes C. crystal lattices D. alloys 3/9/11 – Georgia Video Notes Kinetics finish and ppt overview Where is most of the mass of an atom located? A. electrons B. nucleus C. neutrons D. protons When a material freezes, energy A. is absorbed by the material. B. is released by the material. C. is absorbed by a catalyst. D. remains unchanged. 3/10/11 –ppt overview finish with problems in class email: firstname.lastname@example.org HW: On line http://www.glencoe.com/qe/science.php?qi=1001 An acidic solution usually tastes A. bitter. B. salty. C. sour. D. sweet. A substance’s malleability is directly related to the kinds of bonds within and between the substance’s molecules. Which chemical bond makes a substance the most malleable? A. covalent B. ionic C. metallic D. nucleic A buffer helps to _________ A. dissociate an acid. B. dissociate a base. C. neutralize a salt. D. stabilize pH. 3/11/11 – Quiz Kinetics Empirical Formula Practice Guided What is the boiling point of water in kelvins? A. 32 K B. 100 K C. 212 K What kind of bond exists between the two nitrogen bonds in N2? A. covalent B. ionic C. metallic Which is always true of an endothermic reaction? A. Chemical bonds are broken. B. Energy is released. D. 373 K D. nuclear C. Light is created. D. Energy is absorbed. Substance X has a pH of 3, and Substance Y has a pH of 6. This means that ______ A. Substance X has 1000 times the concentration of hydrogen ions that Substance Y has, making it a stronger acid. B. Substance X has twice the concentration of hydrogen ions that Substance Y has, making it a weaker acid. C. Substance Y has 1000 times the concentration of hydrogen ions that Substance X has, making it a stronger base. D. Substance Y has twice the concentration of hydrogen ions that Substance X has, making it a weaker base. A gas diffuses because the molecules of a gas A. have little motion. B. have random motion. C. vibrate slowly. D. vibrate quickly. What is the molarity of 80 g of NaOH in 500 mL of solution? A. 2M solution B. 4M solution C. 8M solution D. 40M solution How many particles of NaOH are contained in 80 gram?