At what temperature will a solid melt?
a. the temperature at which intermolecular forces push the
molecules apart
b. the temperature at which the kinetic energy breaks the
intermolecular attractions
c. the temperature at which the pressure forces molecular motion to
stop
d. the temperature at which the atomic bonds within the molecules
are broken

Does anyone know a lot about how to: - calculate mass of magnesium metal - calculate the actual yield of magnesium oxide - calculate the theoretical yield of mgo - calculate the percent yield of mgo - determine the percent yield of mgo - determine the average percent yield of mgo i had to do an online lab and its asking these questions but i have no idea where to start or how to be able to find these things. i can post the chart of the data from the lab or if you can tell me exactly how i can find each.

What diagram shows the ionic compound of magnesium oxide

Calculate the frequency of a wave in a spring toy. the wave has a speed of 1.1 meters per second and a wavelength of 0.1 meters. *