The specific heat of aluminum is 0.897j/(g•°c). if a 22.6 g sample of aluminum is heated from 25°c to 250°c, then how much heat will the aluminum absorb?

Q=mcat

=(22.6)(.897)(250-25)

4,561.245 or 4.5 * 10^-3

the number of valence electrons for each molecule or ion is shown beneath the structure. remember hydrogen will not have more than two electrons. this hydrogen is part of a covalent bond (sharing two electrons). a double bond here would cause hydrogen to share four electrons with phosphorus.