<p>Name Date</p><p>PreMidterm Quiz</p><p>1.Fill out the chart</p><p>Subatomic Particle Location in atom Charge of Particle Weight of particle</p><p>2. Explain or Define the following</p><p>Atomic Mass(What element is it based upon?)</p><p>Atomic Number:</p><p>3.Given Lithium-7 tell me the following:</p><p> Atomic number</p><p> Atomic Mass</p><p> Number of protons</p><p> Number of neutrons</p><p> Number of electrons</p><p> Nuclear charge</p><p>4.History of the atom matching</p><p>Scientist Theory</p><p>___1. Dalton A. probable location of electron</p><p>___2. Thompson B. Everything’s made of atoms</p><p>___3. Rutherford C. discovered electron with plum pudding model</p><p>___4. Bohr D. Gold foil experiment and empty space concept</p><p>___5. Charge cloud model E. electrons travel in orbits Draw the models for each: Dalton Thompson Rutherford</p><p>Bohr electron charge cloud model</p><p>5.Is the following endothermic or exothermic?</p><p> a. 2H2O + heat2H2 + O2 e. 2H2 + O2  2H2O + heat</p><p> b. H2O(s)  H2O(l) f. H2O(l)  H2O(g)</p><p> c. H2O(g) H2O(l) g. H2O(s) H2O(g)</p><p> d. H2O(g) H2O(s) </p><p>Go back to question #5. Which letter represents: Heat of Fusion sublime deposition</p><p>6.Are the following isotopes? Why or why not support your opinion.</p><p>12C vs 14C</p><p>6 6</p><p>7.Match the following:</p><p>___1. Ionization energy A. ability to attract electrons</p><p>___2. Electronegativity B. energy needed to remove the most loosely held </p><p>Electrons</p><p>8.Match the following:</p><p>___1. Element A. 2 or more elements chemically combined</p><p>___2. Compound B.elements or compounds</p><p>___3.Homogenoeous mixture C. same throughout ex air</p><p>___4. Hetergeneous mixture D. simplest form of matter cannot be broken ___5. Allotrope down</p><p>___6. Pure substance E. evenly disturbed ex Italian salad dressing</p><p>F. same element in same phase but different </p><p>Physical and chemical properties.</p><p>9.Classify what kind of element phosphorus is?</p><p>10.Who has a larger atomic radius?(Circle the correct answer)</p><p>A. Ba+2 or Ca+2 b. F or Cl C. O-2 or N-3</p><p>11.Which of the following is malleable, good conductor of electricity, ductile and form cations? A. Fluorine B. Nitrogen C. Sodium D. Arsenic</p><p>12.What is:</p><p> The electron configuration for calcium?</p><p> What is the electron configuration for its ion?</p><p> State the electron configuration for calcium in the excited state</p><p> What family does it belong in?</p><p> Is it more reactive than Mg?</p><p> What is its melting point in degrees Celsius?</p><p>13. Name the metalloids.</p><p>14. Which has the lowest hydrogen bonding: A. HBr B. HCl C. HF D. HI</p><p>15. Which of the following contains both ionic and covalent bond? A. NaCl B. CO2 C. CH4 </p><p>D. Na3PO4</p><p>16. Tell which of the following is ionic bond, polar covalent bond, nonpolar covalent bond, coordinate covalent bond and network solid</p><p>+ A. H3O B. H2 C. H2O D. SiO2 E. Mg(OH)2</p><p>17.State the type of molecule for the following: CO2, O2 and H2O 18. Which of the following has the lowest kinetic energy?</p><p>A. 1.00g at 45C B. 2.0g at 55c C. 3.0g at 65c D. 4.0g at 70c</p><p>19. If a hot brick is placed in a cold bucket of water. Explain how the heat flows?</p><p>20.A. What is the gram formula mass of barium hydroxide?</p><p>B. if your given 575g of barium hydroxide, how many moles do you have?</p><p>C. What is the percent composition of barium in barium hydroxide?</p><p>21. Perform the following to the correct number of significant figures and units:</p><p>A. 12.4g = b. 1.2g + 2.54g= C. 12.5cm x 2.6cm = d. 12.034m-5.0m =</p><p>3.0mL</p><p>22. Given the following equation 2 H2(g) + O2(g)  2H2O(l)</p><p> What is the mole ratio of oxygen to water?</p><p> How many grams of hydrogen reacts completely with 75g of oxygen and 250 grams of water?</p><p> Which substance in the equation has a definite volume but no definite shape?</p><p>23. What is the unit used to express amount of substance called?</p><p>24</p><p> Which element in the following groups the most active?</p><p>Group 1 Group 17 </p><p> Which is the most active element? Most active nonmetal?</p><p> Name the two elements that are liquids</p><p> What’s special about transition elements?</p><p> What’s special about mercury? 25. In terms of energy levels explain how quanta is produced?</p><p>26. Find the underlined charge: H2KPO4</p><p>27. Draw the Lewis electron dot diagram for a molecule of bromomethane. CH3Br</p><p>28. An orbital is defined as: (A) a region of the most probable proton location (b) a region of the most probable location of electron (c) a circular path traveled by a proton around the nucleus (d) a circular path traveled by an electron around the nucleus</p><p>29.Convert the following temperatures a. -73c b. 20K</p><p>30. When 25.0 grams of water are cooled from 20.0c to 10.0c, the number of Joules of heat energy released should be?</p><p>31. If the empirical formula is C3H4O3 and a molecular mass is 176amu. What is the molecular formula?</p><p>32. Which of the following is an allotrope? (a) Silicon (b) carbon (c) fluorine (d) sulfur</p><p>33. Name the two noble gases you could force to react with great pressure.</p><p>34. Which of the following behaves like an octet? (a) nitrogen (b) hydrogen (c) helium (d) neon</p><p>35. Which compound forms a colored aqueous solution? (a) CaCl2 (b)CrCl3 (c) NaOH (d)KBr</p>