An exact mass of an unknown solute is added to a solution of heptane (an organic solvent). The freezing point of the resulting solution is 2.3 degrees lower than that of pure heptane. Which statement best describes what would happen if the mass of the unknown solute is doubled?

Hannah is writing a report on how albedo affects the global climate. she’s proofreading her passage for any factual errors. which sentence must hannah correct before submitting her report? earth receives energy from the sun. this energy drives many of the processes on earth, including its climate. some part of this energy is reflected by earth’s surface. we use the term albedo to describe the reflected energy. albedo of an object is the ratio of the reflected radiation to the total radiation reaching the object. a value of 0 means no energy is absorbed by the object, whereas a value of 1 means that all of the energy is absorbed. in this way, the albedo of an object can influence earth’s atmospheric temperature.

Ionic compounds are made of ions, and yet the overall charge of an ionic compound is neutral. why?

Is 343 in the sequence -5, -2, 1, 4, 7