Mark Visited a Local Café near Work and Was Debating What

question 35

Multiple Choice

Mark visited a local café near work and was debating what to order. He was trying to cut down on caffeine but knew that in addition to coffee, soft drinks and tea also have caffeine in them. Which choice would provide the least caffeine for Mark?

• A) 12-ounce can of Mountain Dew soft drink
• B) Eight-ounce cup of black tea, steeped for 3 minutes
• C) Eight-ounce cup of instant coffee
• D) Two-ounce cup of espresso
• E) Eight-ounce cup of hot chocolate

---

Definitions:

Valence Shell Electron Pair Repulsion

This theory predicts the geometry of individual molecules from the number of electron pairs surrounding their central atoms.

Hydrogen Sulfide Molecule

A chemical compound with the formula H2S, characterized by a foul odor of rotten eggs; it is a poisonous, corrosive, and flammable gas.

Electronegativity Difference

The measure of the tendency of an atom to attract a bonding pair of electrons towards itself, used to predict the nature of chemical bonds.

Polar Covalent

A type of chemical bond where two atoms share a pair of electrons but they do so unequally, leading to a partial positive charge on one atom and a partial negative charge on the other.