If the (mass/volume) is 1.80% (m/v) of a solution containing 3.6 g of sodium chloride, what is the volume of solution in ml?

Find the mass in grams of 1.37x1020 particles of h3po4

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

Identify the electromagnets with poles that are reversed from the electromagnet shown above