Explain why the problem below is not the correct dimensional analysis setup to determine the mass of 4.50 moles of KCI.
4.50 moles KCI 39.10 g/1 mole KCI = 176 g KCI

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