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Download MID-TERM EXAM REVIEW! Unit 1 Convert the following: 1.) 2.02 x
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MID-TERM EXAM REVIEW! Unit 1 Convert the following: 1.) 2.02 x 1015 mg = ___ g 2.) 1.29 x 10-7 m = ___ cm 3 3 3.) 13.5 dm = ___ cm 4.) 1.64 x 1014 mL = ___ L 5.) What is the mass of a cube of aluminum (density = 2.70 g/cm3) with each side measuring 2.00 cm? A student is determining the density of a U.S. nickel. His data is shown below: # of nickels 15 Mass graduated cylinder and 50 mL water Mass cylinder, water, and nickels Mass 50.00 g 73.50 g ? nickels Volume of water Volume of water and nickels Volume of nickels Density of nickels. 50.0 mL 53.0 3.0 ? 6.) What is the mass of 15 nickels? 7.) What is the density of 15 nickels? Unit 2 * Classify as element, compound, solution, or heterogeneous mixture. 8.) Flat soda 9.) Potassium iodide 10.) Iodine 11.) Potassium iodide completely dissolved in water 12.) Soil 13.) Chromium * Classify as chemical or physical changes. 14.) Shredding cheese 15.) Melting cheese 16.) Digesting cheese 17.) Making salt from sodium and chlorine 18.) Sprinkling salt on french fries * In what group (give number) are each of the following elements found in the Periodic Table? 19.) alkali metals 20.) alkaline earth metals 21.) transition elements 22.) halogens 23.) noble gases Unit 3 * Tell scientist who... 24.) Discovered the nucleus? 25.) Discovered the neutron? 26.) First got ideas about atoms published? 27.) Discovered electron? 28.) Said electrons move in fixed paths around nucleus? * Solve the following: 29.) How many molecules of carbon dioxide (CO2) are contained in 46.2 grams of CO2? 30.) What is the mass (in grams) of 6.92 x 1023 molecules of Ca(NO3)2? Unit 4 31.) Write electron configuration for nickel and selenium. 32.) Draw orbital notation for H.O.E.L. of nickel and selenium. 33.) Write noble gas configuration for nickel and selenium. 34.) Write out the four quantum numbers for the last electron added to nickel and selenium. (Honors only) 35.) Draw the dot diagram for nickel and selenium. 36.) Identify the H.O.E.L. and # of valence electrons for nickel and selenium. Unit 5 * Define the following terms: 37.) Ionization energy 38.) Electronegativity 39.) Effective nuclear charge 40.) Shielding effect 41.) Which element has an oxidation number of –1? 42.) Which element is a noble gas? 43.) Which element(s) is/are metals? 44.) Which element is an alkaline earth metal? 45.) Which element has 5 electrons in the outer shell? 46.) Which element(s) are metalloids? 47.) Give the formula for the compound between A and F. * Without looking at the Periodic Table write the expected outer electron configuration for the element in: 48.) Period 2, Group 14 49.) Period 5, Group 17 50.) Period 3, Group 2 * Answer the following. 51.) Name the most reactive metal. 52.) Name the most reactive nonmetal. Unit 6 * Tell predominant type of bonding in the following compounds (ionic, covalent, both): 53.) CO2 54.) Na2SO4 55.) MgBr2 56.) Ag2CO3 * Define and tell what types of substances exhibit these intermolecular forces: 57.) Hydrogen bonding 58.) Dipole-dipole 59.) London dispersion Unit 7 * Write formulas for the following: 60.) Potassium carbonate 61.) Chromium (III) nitrate 62.) Disulfur pentoxide 63.) Zinc sulfide 64.) Magnesium dichromate * Name the following compounds: 65.) Na2CrO4 66.) AgBr 67.) SO3 68.) Ca(ClO3)2 69.) PbSO4 70.) Fe(OH) 3 71.) Which compound has the highest % nitrogen? (A) NO2 (B) NaNO3 (C) NH3 * Find the oxidation number of nitrogen in each of these compounds. 72.) Zn(NO3)2 73.) Zn(NO2)2 74.) Mg3N2 75.) N2O5 76.) What is the empirical formula of a compound containing 56.5 % potassium, 8.7 % carbon, & 34.8 % oxygen? 77.) A compound has an empirical formula of CH2O. If the molar mass of the actual formula is 180 g/mole, what is the molecular formula for the compound? * Fill in the charts. 78.) Unit 3 Name Symbol # of p+ # of e- # of no 50 atomic # mass # 118 iron – 56 14N 14 14 79.) Unit 4 Wavelength (short/long) Energy Frequency (high/low) High Low 80.) Unit 5 Across a Period (left to right) Down a Group (top to bottom) Noble Gases Included? yes or no? Atomic Radius Electronegativity Electron Affinity Ionization Energy 81.) Unit 6 Compound Lewis Structure H2O CF4 CO2 NH3 Get the answers to the review Back to the Main Page Shape Molecular Polarity