Hf is a stronger acid than nh+ 4 . which base would be stronger: f− or nh3? 1. f − 2. both bases would be equal in strength. 3. nh3 4. cannot tell from the information given. 5. neither f1− nor nh3 would be bases.

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

Melissa is interested in her family tree and how her family has changed over its many generations. melissa probably more closely resembles

Calculate the mass of carbon in 97.0 g of sucrose c12h22o11