Balance each of the following equations by placing coefficients in front of the formulas as needed MgO(s) Mg(s) + 02(8) ZnCI.(ag)​

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

How many miles of water are produced if 5.43 mol pbo2 are consumed

Which of these expressions are correct variations of the combined gas law? p1v1t2 = p2v2t1 both