When treated with a Grubbs catalyst, compound A (under conditions of high dilution) is converted into one product (compound 1) with the molecular formula C6H8O2. Under similar conditions, compound B is converted into two products, compounds 2 and 3, each of which has the molecular formula C8H12O2. Draw the structures of compounds 1, 2, and 3 and explain why compound A gives only one metathesis product while compound B gives two metathesis products.

Which sentence best describes the formation of igneous rock? a- lava on the surface dries up and makes arock b_melted rocks cools and forms crystals c_rocks under tremendous heat and pressure d_magma is melted rock underground

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

Place the elements below in order of decreasing ionization energy. aluminum(al) chlorine(cl) magnesium (mg) sulfur(s)