THE CITY UNIVERSITY OF NEW YORK Chemistry 1040 June 25, 2018 BROOKLYN COLLEGE Th
ID: 296958 • Letter: T
Question
THE CITY UNIVERSITY OF NEW YORK Chemistry 1040 June 25, 2018 BROOKLYN COLLEGE Third Examination Name PART L. TURN OFF ALL CELL PHONES!! YOU MAY NOT LEAVE DURING THE TEST!!! 1·The energy required to change one gram of a solid to a liquid at its melting point is called a. specific heat b. heat of fusion c. heat of vaporization d. ionization energy 2. A reaction in which the energy of the products is less than the reactants a. exothermic b. endothermic c. combination d. redox 3. Which compound exhibits hydrogen bonding? a. HCI b.CH4 c. NHy d. HS 4. The barometer was discovered by b. Atmos c. Torricelli - d. Dalton a. Boyle Capillary action that is observed in some liquids, especially water, is caused by a. density 5. b. hydrogen bonding c. viscosityd. surface tension 6. Which unit of pressure is equal to 760 mm Hg? c. liter d. atm a. torr b. in. Hg 7. Oxidation is the loss of d. electrons c. neutrons b. protons a. oxygen 8. If aqueous solutions of potassium iodide and silver nitrate are mixed together to form so silver iodide, what can be classified as a spectator ion? d.Y ) c. Ag (4) b. NO3 (ag) a. 9. An example of a phase change is a. heating liquid water from 10°C to 95°C b. melting ice at O°C to water at O°C b. dissolving salt in wa d. all of the aboveExplanation / Answer
1. Option B is correct
Heat of fusion is the amount of energy needed to convert one mole of a substance between its solid and liquid states.
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