Thirty points to who ever can answer this problem

during an experiment, 104 grams of calcium carbonate reacted with an excess amount of hydrochloric acid. if the percent yield of the reaction was 80.15%, what was the actual amount of calcium chloride formed?
caco3 + hcl → cacl2 + co2 + h2o

a. 90.1 grams
b. 92.4 grams
c. 109.2 grams
d. 115.3 grams

How does the digestive system interact with the circulatory system? a. messages sent as electrical impulses from the digestive system are transported throughout the body by the circulatory system. b. nutrients taken in and broken down by the digestive system are carried to various parts of the body by the circulatory system. c. nutrients and gases are absorbed by organs in the circulatory system. then, they are transported to all parts of the body by organs in the digestive system. d. oxygen and carbon dioxide are exchanged by organs in the digestive system, and the gases are carried to the rest of the body by the circulatory system.