11 When an object is dropped into a graduated cylinder, the water in the
cylinder rises from 50.OmL to 56.3 mL. The mass of the object is 15.9 g.
What is the density of the object? *

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

What occurs when a cell engulfs large food particals

•hydration •dissociation •dissolving which one goes to which