Elena weighed out 50 grams of salt. She dissolved the salt in 285 grams of water. How did the addition of salt affect the final mass and volume of the mixture?

How does the principle of electromagnetism explain the interaction between earth’s magnetic field and the solar wind?

Under normal conditions, describe how increasing the temperatures effects the solubility of a typical salt

The bond energy for the van der waals bond between two helium atoms is 7.9×10−4ev. assuming that the average kinetic energy of a helium atom is (3/2)kbt, at what temperature is the average kinetic energy equal to the bond energy between two helium atoms