Identify the correct practices when setting up the condenser for a reflux system. Select one or more:

Rays from the sun are not considered matter true or false

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

Can anyone answer these questions? ? i need it before 1: 00pm today