What is the difference between mixtures and compounds? i am trying to study for my science quiz on tuesday, and i need to know the difference between the two. also, my teacher used cake as an example, but i am confused on which one it is because if you just mixed it in a bowl, it would be a mixture right? but if it's baked, it would be a compound right?

Which explanation is true about what happens to a ray of light when it strikes a mirror? a. a light ray is transmitted toward a mirror at a certain angle. the light ray is then reflected by the mirror at an equal angle but in the opposite direction of the transmitted ray. b. an incident ray strikes a mirror at an angle with a line perpendicular to the mirror. the light ray is then reflected at an angle equal to the angle of incidence but on the opposite side of the perpendicular line. c. a reflecting ray strikes a mirror at an angle with a line perpendicular to the mirror. the light ray is then refracted at an angle equal to the angle of the reflecting ray and on the same side of the perpendicular line. d. an incident ray strikes a mirror at an angle with a line parallel to the mirror. the light ray is then transmitted at an angle equal to the angle of incidence but on the opposite side of the parallel line. you so much! : -d take the time to try and answer correctly.

If an atom has 12 protons and 13 neutrons

The point along a planet's orbit where it is closest to the sun is called the