Answer 2: given the following proposed mechanism, predict the rate law for the overall reaction.(3 points) extrn cret it a2+ 2b ? 2ab (overall reaction) ec a2 ? 2a a+b? ab fast slow

1)each group 16 element has how many valence electrons? ( )4 ( )6 ( )8 ( )16 2)how many dots appear in the dot structure for calcium ion, ca2+? ( )zero ( )one ( )two ( )eight 3) which of the following atoms forms a cation to obtain an octet of outer shell electrons? ( )magnesium ( )oxygen ( )fluorine ( )helium 4) an al3+ ion contains 13 protons and 10 electrons. ( )true ( )false 5) valence and non-valence electrons are represented in lewis dot structures. ( )true ( )false

All of the following are part of the biosphere except

What is the percentage of hydrogen in c2h4