Some of the acid in acid rain is produced from the following unbalanced reaction: NO2(g) + H2O(l) -> NO(g) + HNO3(aq). A falling raindrop (H2O) with a
mass of 0.05 g comes into contact with 0.010 g of NO2.
Balance the equation. Calculate the number of moles of No2. Calculate the number of moles of H2O. Which is the limiting reactant? Calculate the mass of HNO3. What is the % yield of nitric acid if 0.006 g of HNO3 are actually formed?

You have 125g of a certain seasoning and are told that it contains 76.0 g of salt what is the percentage of salt by mass in this seasoning

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

11) burning your hand when accidentally touching a hot plate is an example of which heat transfer? a. conduction b. convection c. radiation d. none of these