Which compound is part of a lipid?A)carbon dioxide (CO2)B)stearic acid (Cl8H36O2)C)ethane (C2H6)D)glucose (C6Hl2O6)

Which element forms an ionic bond with flourine? 1) fluorine 2) carbon 3) potassium 4) oxygen

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

3) in peaches, [oh]=3.16x10-11 m a) find [h+ ] b) what is the ph? c) is the solution acidic, basic, or neutral?