Which of the Following Marks the Beginning of U

question 37

Multiple Choice

Which of the following marks the beginning of U.S. hegemony in the western hemisphere?

• A)the Monroe Doctrine (1823)
• B)the U.S.-Mexico War (1846-48)
• C)the Spanish-American War (1898)
• D)the Cold War

---

Definitions:

IR Absorptions

Refers to the specific wavelengths at which infrared (IR) radiation is absorbed by a molecule, providing insights into the types of bonds and functional groups present.

Compound Name

The systematic or common naming of chemical compounds based on their structure and the nomenclature rules of chemistry.

Spin-Spin Splitting

A phenomenon in NMR spectroscopy where a nucleus's magnetic field is split by the magnetic fields of neighboring nuclei.

Chemical Shift

A term used in nuclear magnetic resonance (NMR) spectroscopy to describe the change in magnetic resonance frequency of a nucleus due to its chemical environment.