A chemical reaction is designated as exergonic rather than endergonic when . ANSWER Unselected activation energy is required Unselected it absorbs more energy Sure I AM SURE activation energy exceeds net energy release Unselected the potential energy of the products is less than the potential energy of the reactants Unselected the products are less complex than the reactants

Read these sentences from the text. near the equator, the tropics receive the most rain on a consistent basis. as a result, the fresh water falling into the ocean decrease the salinity of the surface water in that region. [. .] . . as the salt content of sea water increases, so does its density. what can you infer about how rain affects the density of surface water near the equator?

Needthe meter is the standard unit for: 1) height 2) length 3) weight 4) mass

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