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- Which of the following is not a property of water? a. It has a low boiling point compared with other molecules. b. It has a high heat of vaporization. c. Its molecules resist separation, a property called cohesion. d. It has the property of adhesion, the ability to stick to chargedand polar groups in molecules. e. It can form hydrogen bonds to molecules below but not aboveits surface.The mutual attraction of opposite charges holds atoms together as molecules in a(n) ________ bond. a. ionic b. hydrogen c. polar covalent d. nonpolar covalent1.Describe the structure of a water molecule, and explain what properties emerge as a result of this structure
- 2.List four characteristics of water that are emergent properties resulting from hydrogen bonding1. A single covalent bond is made up by a shared pair of atoms T or F If not, then 2. Double covalent bonds consist of 4 electron pairs that are shared T or F If not, then 3. Water molecules are held together by non-polar covalent bonds T or F If not, then 4. A water molecule is held together by polar covalent bonds T or F If not, then 5. Methane molecules are held together by non-polar covalent bonds T or F If not, then 6. A methane molecule is made up of non-polar hydrophobic interactions T or F If not, then Amino acid 1 Amino acid 2 R Identify non-polar covalent bonds below. NH, NH HQ Identify polar covalent bonds (H HC Dipeptide (H C HQ Dontide hand (H NH, NH Betore bonding Cevalent bonds fermed Oygen stem The above reverse reaction is a reaction; the forward reaction is a Hydregen atom Hydrogen lem WatermeleculeO11. The atoms of a certain element each contain 11 protons and 1 valence electron. Which statement correctly identifies this element and describes its chemical reactivity? The element is fluorine, and it is not very reactive. The element is fluorine, and it is highly reactive. The element is sodium, and it is highly reactive. The element is sodium, and it is not very reactive. CLEAR ALL
- 4. Explain why molecules of water form hydrogen bonds with other molecules of water. 61. The partial negative charge at one end of a water molecule is attracted to the partial positive charge of another water molecule. This attraction is called: a. a covalent bond b. a hydration shellhydrogen bond d. a hydrophobic bond e. an ionic bond 2. True or False. A hydrogen bond that is linear is more stable than one that is bent.16. Which of the following statements defines hydrolysis? Group of answer choices constant removal of hydrogen atoms from the surface of a carbohydrate breaking of a long-chain compound into subunits by adding water heating of a compound in order to drive off excess water and concentrate its volume linking of two or more molecules by the removal of one or more water molecules
- 2. Identify and encircle the functional groups in the structure of molecule3. Hydrogen Bonds a. Draw 4 additional water molecules (each with red polar covalent bonds) attached to 1 central water molecule. b. Indicate which bonds are hydrogen bonds by using a blue dashed line (- - - -) for each of those bonds.#8. How did you get 3 covalent bonds?
