A.P_Chapter_2_3_Test - A.P Biology Chapter 2 3 Test...

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A.P. Biology: Chapter 2 & 3 Test Multiple Choice Identify the choice that best completes the statement or answers the question. 1. When two atoms are equally electronegative, they will interact to form a. equal numbers of isotopes. d. nonpolar covalent bonds. b. ions. e. ionic bonds. c. polar covalent bonds. 2. A covalent bond is likely to be polar when 3. Which of the following is possible due to the high surface tension of water? 4. Many mammals control their body temperature by sweating. Which property of water is most directly responsible for the ability of sweat to lower body temperature? 5. In a single molecule of water, the two hydrogen atoms are bonded to a single oxygen atom by a. hydrogen bonds. d. ionic bonds. b. nonpolar covalent bonds. e. van der Waals interactions. c. polar covalent bonds. 6. An element is to a (an) ____ as an organ is to a (an) ____. 7. One difference between carbon-12 and carbon-14 is that carbon-14 has 8. Results from a transfer of electron(s) between atoms.
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9. Which of the following solutions has the greatest concentration of hydroxide ions [OH - ]? a. lemon juice at pH 2 d. urine at pH 6 b. vinegar at pH 3 e. seawater at pH 8 c. tomato juice at pH 4
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