A chemist reacted 57.50 grams of sodium metal with an excess amount of chlorines. The chemical reaction that occurred is shown.
Na + Cl -> Nac
Ir the percentage yield of the reaction is 86%, what is the actual yield?
Show your work, including the use of stoichiometric calculations and
conversion factors.

Asolution contains 225 g of sodium chloride, nacl, dissolved in enough water to make a 0.25 l of solution. what is the molarity of the solution? a. 3.88 m, b. 1.03 m, c. 1.5 m, d. 15.5 m

Which best explains why an iceberg floats?

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