NEEED HELP
RN SCIENCE PURPLE GROUP THE CHOCOLATE BAR MYSTERY

Determine the number o moles of ions/atoms/particle in the following: 2.50 miles of k2s (let me know how to do)

Using the periodic table, complete the table to describe each atom. type in your answers

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line