How many moles of NaCl are needed to make 51.4 L of a 62.2 M NaCl solution.

Which best describes how johannes kepler developed his laws of planetary motion

What happens when light is scattered?

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