Susan ran a marathon (26.2 miles) in 6.5 hours. what was susan's average speed?

What forms when chemical reactions combine pollution with sunlight?

Temperature is _related to the average kinetic energy of a gas. inversely directly not disproportionally

The table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 10 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.