Calculate the amount of energy released in the formation of one mole of base bonds (not lattice energy). the radius of the barium ion is 1.35 å, and the radius of the selenide ion is 1.98 å. note that 1å=10−10m.

Why do scientists look for patterns in the world? a. patterns can explain observations. b. patterns never change, no matter what. c. patterns are easy for scientists to detect. d. patterns are all the same, through all time.

Tell me the iupac names of the following alcohols:

Observation and experimentation have led many scientists to accept a theory about the origin of the universe. this theory is called the big bang theory. scientific evidence collected and observed by scientists around the world suggests that the universe is ever expanding from a hot and dense initial state. what makes this a scientific theory? (2 points)