The composition of vitamin C is 40.91% carbon, 4.59 % hydrogen, and 54.50 % oxygen. The molar mass is 176 g/mol. What is the molecular formula of vitamin C?

How many electrons does silver have to give up in order to achieve a sido noble gas electron configuration?

Consider the nuclear equation below. 239/94 pu—-> x+ 4/2 he. what is x?

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