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BPK 105 Lecture Notes - Lecture 1: Ionic Bonding, Hydrogen Bond, Chemical Polarity

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cynnk
27 Mar 2020
School
Simon Fraser University
Department
Biomedical Physio & Kines
Course
BPK 105
Professor
Ryan Dill

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Document Summary

Module 1 do questions 4 and 8: differentiate between ionic, covalent and hydrogen bonds. An ionic bond: is a chemical bond that comes from the attraction between ions of the opposite charge and include the compete transfer of valence elections. An example of an ionic bond is between a sodium ion (na+) and a chlorine ion (cl ) which are attached to each other by ionic bonding to form sodium chloride (nacl) which is also known as table salt. A covalent bond: is chemical bond that is formed when 2 atoms share one or more pairs of electrons. An example of a covalent bond is the bond between two hydrogen atoms that join together to form a hydrogen molecule. A hydrogen bond: is not a chemical bond. A hydrogen bond is the weak attraction between oppositely charged ends of one polar molecule to another polar molecule. Include a general description of these organic molecules in your discussion.

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Related Questions

Monomeric molecules in the cell can be joined to form macromolecule polymers. An example of this is the linking of amino acids to form polypeptide chains.

9) What type of bond is formed between amino acids to form polypeptide chains?

a) hydrogen bond

b) nonpolar covalent bond

c) ionic bond

d) polar covalent bond

10) Which of the following properties make this bond the ideal choice for linking amino acids together to form a polypeptide chain?

a) it is nonpolar

b) it is polar

c) it is electrostatic

d) an enzyme is required to break this bond

e) it is reversible in water

1. Compounds that are made of carbon, hydrogen, oxygen, nitrogenand/or sulfur are:

a. ionic compounds

b. molecular compounds

2. A peptide bond is a...

a. covalent bond

b. intermolecular force

3. In chemistry, what is an R group?

a. a real group

b. a free radical

c. Argon

d. a functional group

4. A hydrogen bond is a type of

a. dispersion force

b. dipole-dipole force

c. covalent bond

d. ion-dipole force

5. In general chemistry, what do weak acids do?

a. accept a proton

b. donate a proton

6. In general chemistry, what do weak bases do?

a. accept a proton

b. donate a proton

7. What happens to a weak acid when it donates a proton?

a. it becomes positively charged

b. it becomes negatively charged

c. it become neutral

8. what happens to a weak base when it accepts a proton?

a. it becomes positvely charged

b. it becomes negatively charged

c. it becomes neutral

9. R groups that cluster in the center of proteins or are foundadjacent to the hydrocarbon chains of membrane phospholipids tendto have R groups with alkyl groups, such as (–CH3) or(–CH2–CH3). Using your General Chemistryknowledge, what bond, force or interaction would form between thesegroups?

a. chemical bond

b. hydrogen bond

c. van der waals interaction

d. covalent bond

10. A amino acid has an R group containing an amide group(–CONH2), and another amino acid has an R groupcontaining a hydroxyl group (–OH). Using your General Chemistryknowledge, what bond or force would form between these groups?

a. chemical bond

b. hydrogen bond

c. van der waals interaction

d. covalent bond

Circle the word of phrase that correctly completes the sentece or answers the question. The property that allows water molecule to be attracted to each other is called (cohesion, adhesion). This propert is conferred by (covalent bonds, hydrogen gonds). This property is conferred by ( covalent bond, hydrogen bond). Ice is ( more dense, less dense) than liquid water. Water is polar molecule because of the unequal sharing of( electrons, protons) between the atoms in H2O. Adhesion of water to a surface is through the action of (covalent bond, ionic bonds, hydrogen bonds) between the water and the surace. Water is converted from liquid to vapor through the brakage of ( colvalent, hydrogen) bonds. Which (one) of these substance is not hydrophilic:( cellulose, oil, NaCl). Which of these will not dissolve in water, even though it is polar?(cellulose, oil, NaCl). Which of these is an electrolyte? (cellusose oil, NaCl). A buffer will contain a week acis , weak base, both).