Florine23 has a half life of 2.2 seconds. How much of a 400g sample would be left after 11 seconds?

The enthalpy of formation of water is -285.8 kj/mol. what can be inferred from this statement?

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.

What are four significant sources of ghgs that come from wostem washington?