Which of the following is an example of a True or False: As heterogenous mixture? vapor pressure Hot sugar water decreases, Air intermolecular force An unopened can strength increases. of soda True Italian salad False dressing Vapor pressure is Which combination of useless. molecules would result In the following list, in a homogenous which combination(s) mixture? would create a Propanoic Acid covalently-bonded (C3H6O2) in Water compound? (H2O) (CO3) + Sr Benzene (C6H6) in Cl + Br Methanol (CH3OH) K + (OH) Hydrobromic acid (PO4) + (NH4) (HBr) in Toluene (MnO4) + Na (C7H8) I only Sulfur II only tetrafluoride III only (SF4) in Ethanol IV only (C2H5OH) V only Who formulated a I, III, and V nuclear model that II and IV portrays electrons I, III, IV, and V orbiting the nucleus Which nuclear reaction like a planet orbiting correctly depicts the the sun? beta decay of Uranium? JJ Thomson 98240U 96236Th + Ernest Rutherford 24He Gilbert Lewis 98240U 98240U Niels Bohr +e- James Chadwick 98240U 98240U + Dmitri Mendeleev γ John Dalton 98240U 98240U+ Michael Faraday +e-
Which of the following is an example of a heterogenous mixture? Hot sugar water Air An unopened can of soda Italian salad dressing Which combination of molecules would result in a homogenous mixture? Propanoic Acid (C3H6O2) in Water (H2O) Benzene (C6H6) in Methanol (CH3OH) Hydrobromic acid (HBr) in Toluene (C7H8) Sulfur tetrafluoride (SF4) in Ethanol (C2H5OH) Who formulated a nuclear model that portrays electrons orbiting the nucleus like a planet orbiting the sun? JJ Thomson Ernest Rutherford Gilbert Lewis Niels Bohr James Chadwick Dmitri Mendeleev John Dalton Michael Faraday True or False: As vapor pressure decreases, intermolecular force strength increases. True False Vapor pressure is useless. In the following list, which combination(s) would create a covalently-bonded compound? (CO3) + Sr Cl + Br K + (OH) (PO4) + (NH4) (MnO4) + Na I only II only III only IV only V only I, III, and V II and IV I, III, IV, and V Which nuclear reaction correctly depicts the beta decay of Uranium? 98240U 96236Th + 24He 98240U 98240U +e- 98240U 98240U + γ 98240U 98240U+ +e-
chem_111_mock_final_exam_fall_2017.docx