In the changes of matter in the chart above, what is happening to the mass in each change? Does the total mass in these transformations change? IT WONT LET ME POST THE CHART BUT I'LL TRY!

As light moves from one material into the next, which of the following affects how much the light waves will refract, or bend? angle at which the ray strikes the medium color of the material density of the material temperature of the light wave