Which type of molecule is used by organisms to store and transmit genetic information? nucleic acids proteins lipids carbohydrates

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

Fill in the coefficients that will balance the following reaction: a0cr2(so4)3 + a1agno3

Draw the skeletal structures of two different molecules that are each made of 5 carbon atoms and 12 hydrogen atoms.