Amotorcycle travels 823 meters in 20 seconds. what is the average speed? m/s

What layer of the atmosphere is directly above the troposphere?

Melissa is interested in her family tree and how her family has changed over its many generations. melissa probably more closely resembles

Use this information to determine the number of calends electrons in the atoms. which of the following correctly compares the stability of the two atoms? a) both are unreactive b) both are highly reactive c) a is unreactive and d is reactive d) a is reactive and d is unreactive