6. Aluminum oxide forms when aluminum reacts with oxygen. Calculate the mass (in grams) of aluminum oxide that is produced when a mixture of 82.49 g of aluminum and 117 g of oxygen is allowed to react.

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

Write a balanced equation showing the formation of copper (ii) nitrite from its elements

Which of the following is the molecular formula for a simple sugar? a. cooh b. h2o c. oh d. c6h12o6