A chemical reaction is shown. H. + 202 — CO2 + 2H, How many different elements and total atoms are involved in the reaction?

The p sub shell can hold up to 8 electrons in an atom. true or false?

Nan element’s square on the periodic table, the number with the greatest numerical value represents the

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.