Pure aluminum is dropped inyo a solution of silver sulfate, aluminum replaces sulver ik the compound and pure silver sinks to the bottom of yhe cantanior

What is the formula that this ionic compounds could form sr2+p3-o2-

Gymnast always perform on padded mats. how does the mats protect the gymnast

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