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Academic Chemistry Part I Final Review Click Here to Start In which of the following situations would a student be following the lab safety rules? A Performing unauthorized experiments B Wearing goggles C Pushing and shoving his/her lab partner D Adding water to acid 2 of 76 Which instrument measures mass? A Graduated cylinder B Beaker C Balance D Scale 3 of 76 What piece of equipment would a clay triangle be used to hold? A Crucible B Watch glass C Evaporating Dish D Beaker 4 of 76 Which of the following should you not do if you spill chemicals on you? A Tell your teacher B Wash it off C Read the label to determine the chemical D Continue your lab work 5 of 76 Which of the following is smaller than a centimeter? A Decameter B Decimeter C Millimeter D Kilometer 6 of 76 How many times smaller is the centimeter than the base unit? A 100 B 1000 C 10 D 10000 7 of 76 The gram is the standard unit of A Volume B Mass C Density D Length 8 of 76 How many milliliters are equal to 5 liters? SHOW WORK! A 0.005 mL B 500 mL C 5000 mL D 0.05 mL 9 of 76 If you wanted to convert from gram to kilogram, which is the correct conversion factor? A 1000g/1kg B 1000 kg/1 g C 1 g/1000 kg D 1 kg/1000g 10 of 76 Which of the following is not a unit of volume? A mL B L C cm3 D m 11 of 76 Convert 60 km/h to m/min SHOW WORK! A 3600000 m/min B 60000 m/min C 1000 m/min D 360 m/min 12 of 76 How many seconds are in two days? SHOW WORK! A 172800 seconds B 2880 seconds C 1440 seconds D 4882 seconds 13 of 76 What is the scientific notation for 500.? A 5.00 x 102 B 50.0 x 101 C .500 x 103 D 5.00 x 10-2 14 of 76 What is the standard notation for 4.56 x 10-1? A 45.6 B 0.456 C 0.00456 D 456 15 of 76 What is the product of 3.4 x 106 and 7.8 x 102? A 2.7 x 1011 B 2.7 x 109 C 2.7 x 10-9 D 2.7 x 10-11 16 of 76 How many significant digits are in the number 50.000? A 5 B 1 C 2 D 4 17 of 76 How many significant digits are in the number 0.025 A 3 B 4 C 2 D 1 18 of 76 What is the answer to the correct number of significant digits? 5.0005 -2 A 3.0005 B 3.000 C 3.0 D 3 19 of 76 What is a pure substance that is a combination of elements chemically combined A compound B mixture C solution D matter 20 of 76 Sugar completely dissolved in water is classified as A element B compound C solution D mixture 21 of 76 What is the classification of Iron (Fe) A compound B mixture C element D solution 22 of 76 Something that has mass and takes up space refers to A All matter except liquids B All matter except gases C All matter except solids D All matter 23 of 76 The tarnishing of silver is a A Chemical change B Physical change C Nuclear change D None of these 24 of 76 Breaking a pencil in half is a A Chemical Change B Physical Change C Nuclear Change D None of these 25 of 76 Dissolving of salt in water is a A Chemical change B Physical change C Nuclear change D None of these 26 of 76 What must happen in a chemical change that does not occur in a physical change? A New substance is formed B Change in energy C Change in appearance D None of these 27 of 76 Reacts with magnesium metal A Chemical Property B Physical Propery 28 of 76 Boiling Point is A Chemical Property B Nuclear Property C Physical Property 29 of 76 Which of the following is a heterogeneous form of matter? A Water (H2O) B Carbon (C) C Dissolved salt water (NaCl + H2O) D Sand and water (SiO2 + H2O) 30 of 76 How would you calculate density? A Mass x volume B Density x volume C Mass/volume D Volume/mass 31 of 76 How would you calculate mass? A Density x Volume B Mass x Volume C Density / Volume D Mass / Volume 32 of 76 How would you calculate volume? A Mass x Density B Mass / Density C Volume x density D Mass / Volume 33 of 76 A student determines the mass of an object to be 95.0 grams, but the actual mass is 100.0 g. What is the percent error? SHOW WORK! A 10.5% B 95.0% C 5.00% D 1.05% 34 of 76 Who discovered the electron? A John Dalton B J.J. Thomson C Ernest Rutherford D Neils Bohr 35 of 76 What experiment did Ernest Rutherford perform? A Gold foil experiment B Cathode-ray tube C Both of these D None of these 36 of 76 Neils Bohr proposed a model in which the electrons are found in A Rings B The nucleus C The kernel D None of these 37 of 76 The vertical columns on the periodic table are called A Periods B Groups C Families D Both b and c 38 of 76 The nucleus is the center part of the atom that contains A Only Protons B Only Neutrons C Both Protons and Neutrons D Both Protons and Electrons 39 of 76 Elements that are along the bold step line are called A Metals B Transition Metals C Nonmetals D Metalloids 40 of 76 The tendency of an element to react with other elements? A Reaction Tendency B Chemical Activity C Radioactivity D Activity Ratio 41 of 76 Which of the following is not true about the noble gases? A They are unreactive B They are gases C They all have eight valence electrons D They are chemically stable 42 of 76 What is the most active nonmetal? A Helium B Francium C Hydrogen D Fluorine 43 of 76 If copper has two isotopes, what is the average atomic mass? Copper-63 makes up 69.2% and Copper –65 makes up 30.8% SHOW WORK! A 63.8 g B 6380 g C 169.2 g D 63.0 g 44 of 76 The term ion refers to an atom that has A Only lost electrons B Only gained electrons C Gained or lost electrons D Gained or lost protons or neutrons 45 of 76 An isotope has the same atomic number and a different number of A Protons B Electrons C Neutrons D Ions 46 of 76 Which of the following is a property of a metal? A Brittle B Conducts heat and electricity C Dull D None of these 47 of 76 What is the largest part of the atom (mass)? A Electron Cloud B Protons C Neutrons D Nucleus 48 of 76 Which of the following elements is a halogen? A Chlorine B Sodium C Calcium D Argon 49 of 76 Which of the following elements is the least chemically active? A Cesium B Radon C Lithium D Chlorine 50 of 76 Which element has the smallest radius? A S B S2- C Al D K 51 of 76 Which element has the smallest ionization energy? A O B N C Ba D Cu 52 of 76 What groups are part of the d block? A 1-4 B 13-18 C 4-7 D 3-12 53 of 76 Cerium (Atomic number 58) is a A Nonmetal B Metalloid C Transition Metal D Metal 54 of 76 What two groups are part of the s block? A Alkali metals and alkaline earth metals B Halogens and noble gases C Alkaline earth metals and transition metals D Transition metals and Metalloids 55 of 76 Which family on the periodic table has seven valence electrons? A Noble Gases B Halogens C Alkali Metals D Alkaline Earth Metals 56 of 76 What element is in group 5 and period 6? A Ta B Mo C Bi D Te 57 of 76 Where are the metals found on the periodic table? A Right of step line B Left of step line C On the staircase D There is no specific location or grouping 58 of 76 The atomic number is always equal to the number of A Electrons B Neutrons C Protons D Sum of Protons and Neutrons 59 of 76 If the charge of the atom is positive the atom has A Lost a proton B Gained a proton C Gained an electron D Lost an electron 60 of 76 The mass number is the sum of the A Protons and Neutrons B Protons and Electrons C Neutrons and Electrons D Protons, Neutrons and Electrons 61 of 76 Which of the following waves has the shortest wavelength? A B C D 62 of 76 Which wave has the least amount of energy? A B C D 63 of 76 Which element has valence electrons in the second energy level? A Li B Ca C Cu D K 64 of 76 How many electrons are in any one orbital A 14 B 10 C 2 D 6 65 of 76 Which is the correct Lewis structure for Nitrogen? A N B N C N D N 66 of 76 What is the correct electron configuration for Ga? A 1s22s22p63s23p64s23d104p1 B 1s22s22p63s23p64s24p65s24d3 C 1s22s22p63s24s24p65s24d9 D 1s12s22p63s23p64s23d104p2 67 of 76 What kind of bond involves the unequal sharing of electrons? A Nonpolar covalent bond B Polar covalent bond C Ionic bond D Metallic bond 68 of 76 What type of bond involves electrostatic attractions between positive and negative charges? A Nonpolar covalent bond B Polar covalent bond C Ionic bond D Metallic bond 69 of 76 What type of bond usually occurs between sodium and chlorine? A Nonpolar covalent bond B Polar covalent bond C Ionic bond D Metallic bond 70 of 76 What type of bond occurs between two bromine atoms? A Nonpolar covalent bond B Polar covalent bond C Ionic bond D Metallic bond 71 of 76 What is the shape of an ammonia molecule (NH3)? A Bent B Tetrahedral C Triangular Planar D Triangular Pyramidal 72 of 76 What type of molecule is CO2? A Linear B Ionic Crystal C Polar D Nonpolar 73 of 76 A substance that does not dissolve in water must be A Nonpolar B Polar C Ionic D Both b and c 74 of 76