3. Chemical Principles of Microbiology

Appropriately label all of the chemical bonds in this image as either intramolecular or intermolecular.

Map of the Lesson on Chemical Bonding

According to the map above, which of the following are types of covalent bonds?

a) Polar.

b) Van der Waals.

c) Ionic.

d) Hydrogen.

e) None of the above.

Select all of the compounds from the following list. If it is not a compound, then state what it is.

a. H₂O

b. HCO₃^-

c. O₂

d. H₂

e. Li²⁺

f. C₆H₁₂O₆

g. H⁺

Write the molecular formula for a substance that contains two oxygen molecules, two carbons, and four hydrogen atoms. Be sure to follow the standard conventions of writing molecular formulas.

In each of the following reactions, identify the products and reactants, and state what class of reaction is shown.

Which of the following is not an organic compound?

a. Monosaccharide

b. Formaldehyde

c. Water

d. Steroid

Which of the following terms most correctly describes the bonds in a molecule of water?

a. Nonpolar covalent bond

b. Polar covalent bond

c. Ionic bond

d. Hydrogen bond

Most chemical elements exist in the environment as:

a. Usable forms in soil and rock

b. Usable forms in water

c. Unusable forms in soil and rock

d. Unusable forms in water

Leaching of compounds from mine tailings often results in the oxidation of two elements: _____ and _____ .

List three main types of chemical bonds, and give an example of each.