Chapter 2, Problem 2.4a
Explain the difference between an ionic and a covalent bond
Video transcript
Which of the following statements correctly describes a solution?
a. In a solution the solute is chemically dissolved by the solvent.
b. Solutions involve large particles suspended in another component.
c. The particles in a solution will settle out if left to sit.
d. The amount of solute in a solution is expressed as the solution's concentration.
Explain why monosaccharides are polar and fatty acids are nonpolar even though they both contain the same atoms.
Many drugs and poisons exert their effects by blocking one or more enzymes. How could blocking an enzyme lead to the death of a cell?
Explain how buffer systems in the body work if the pH of body fluids increases. Is this an example of a negative or a positive feedback loop? Explain. (Connects to Chapter 1)
Identify each of the following molecules or compounds as ionic, polar covalent, or nonpolar covalent.
a. H₂O
b. LiI
c. C₁₀H₂₂
d. N₂
e. MgBr₂
f. H₂S
What are hydrogen bonds, and how do they form?