Refer to figure 2.15 to draw a picture of on NaCl molecule interacting with several water molecules. Label all molecules and ions appropriately and, as usual, use dotted lines to represent any hydrogen bonds.
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- In ________ reactions, small molecules are linked by covalent bonds, and water can also form. a. hydrophilic b. hydrolysis c. condensation d. ionicWhat kinds of bonds often control the shape (or tertiary form) of large molecules such as proteins? a. hydrogen b. ionic c. covalent d. inert e. singleDraw a water molecule and a methanol molecule interacting with each other. Label: one polar covalent bond, one nonpolar covalent bond, and one hydrogen bond. Indicate all atoms which have a partial positive or negative charge with the appropriate symbol.
- Indicate whether the statement below is true or false.Any covalently bonded H atom can participate in a hydrogen bond if it comes in close proximity with an oxygen atom that forms part of a water molecule.Considering only the side chains of the amino acids in the molecule shown above, how many can participate in hydrogen bonding with water? a. 1 b. 3 c. 5 d.7Examine the water molecule in figure 2.14 of the textbook . What type of bond occurs between each hydrogen and the oxygen
- In a single molecule of water, the two hydrogen atoms are bonded to a single oxygen atom by nonpolar covalent bonds. polar covalent bonds. ionic bonds. hydrogen bonds. van der Waals interactionsWhich of the following statements is correct regarding polar/nonpolar molecules? 1. Molecules comprised of nonpolar covalent bonds are likely to be hydrophilic 2. Polar molecules like sugar tend to dissolve in solutions of other polar molecules like water 3. Nonpolar molecules like sugar tend to dissolve in solutions of polar molecules like water 4. Polar covalent bonds tend to form between molecules that consist of two atoms of the same element, like oxygen gas (O2) or nitrogen gas (N2)The ability of non-polar substances like fat molecules to clump together in water thereby allowing minimal contact between the fat molecules and water is attributed to: Group of answer choices a. Hydrogen bonds b. Ionic bonds c. Van der Waal’s interactions d. Hydrophobic interactions e. Cystine bridges
- Which of the following statements about chemicalbonds is true?a. Covalent bonds are stronger than ionic bonds.b. Hydrogen bonds occur between two atoms ofhydrogen.c. Bonding readily occurs between nonpolar andpolar molecules.d. A molecule of water is unlikely to bond with anion.Which of the following is an example of a hydrogen bond? the bond between the H of one water molecule and the O of another water molecule the bond between C and H in methane the bond between Na and Cl in salt the bond between Mg and Cl in MgCl2 the bond between two hydrogen atomsDefine the following terms: a. hydrocarbon b. hydrophilic c. hydrophobic d. functional group e. R group