Examlex
What is the mass-action expression, Qc, for the following chemical reaction? Cu2+(aq) + 4NH3(aq) ⇄ Cu(NH3) 42+(aq)
Western Hemisphere
The half of the Earth that lies west of the Prime Meridian and east of the antimeridian, including the Americas and parts of Europe, Africa, and Antarctica.
Columbian Exchange
The widespread transfer of plants, animals, culture, human populations, technology, and ideas between the Americas and the Old World following Columbus's voyages.
Tomatoes
Edible, often red, fruit of the plant Solanum lycopersicum, commonly used in cooking and eaten in a variety of ways worldwide.
Peanuts
A legume crop grown mainly for its edible seeds, known scientifically as Arachis hypogaea.
Q3: "A diamond is forever" is one of
Q19: When a strong acid is titrated with
Q31: In going from room temperature (25.0°C) to
Q45: Select the correct name for the following
Q70: Examine the following phase diagram and identify
Q71: Predict the product(s) for the reaction of
Q82: Select the type of interaction that best
Q94: Including cyclic compounds, how many possible isomers
Q96: What is the difference between 1-butyne and
Q103: The salts X(NO<sub>3</sub>)<sub>2 </sub>and Y(NO<sub>3</sub>)<sub>2</sub> (where X<sup>+</sup>