An excess of sodium carbonate, Na2CO3, in solution is added to a solution containing 18.39 g CaCl2. After performing the experiment, 14.37 g of calcium carbonate, CaCO3, is produced. Calculate the percent yield of this reaction.

Which of the following reasons best explains why a scientist would want to replicate gregor mendel's pea plant experiment? a. to discover new aspects of the natural world b. to test the predictions of current theories c. to explain recently observed phenomena d. to test the conclusions of prior investigations