Which example is Not an example of Chemical Potential energy. The hamburger, The Spring, The battery, the flask

Which of the following is true about the speed of light? it depends on the wavelength.

Magnesium is the limiting reactant in this experiment. calculate the theoretical yield of mgo for each trial. trial 1: trial 2: data mass of empty crucible with lid trial 1: 26.688 trial 2: 26.681 mass of mg metal, crucible, and lid trial 1: 26.994 trial: 2 26.985 mass of mgo, crucible, and lid trial 1: 27.188 trial 2: 27.180

At what temperature will a solid melt ?