Which of the following of elements would have all four valence electrons B, Si, As, Te
C, Si, Ge, Sn
O, S, Se, Te
Ga, Ge, As, Se

No copying 15 pts how does a free-body diagram tell you about the net force on an object?

Why is it that 85.48 rounded to two significant figures is 85 and not 86?

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.