What are pillow basalts a result of? a)lava flow out of the surface of volcanic islands b)thin liquid lava flow out of fissures and cracks in the crust c)thick liquid lava flow out of fissure and cracks in the crust d)basaltic lava erupted under water

Apure solvent has a vapor pressure the vapor pressure of a solution. a. equal to b. lower than c. higher than

Chemical kinetics what was the rate of reaction in trial 3? choose the closest answer.

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