The Jayden family eats at a Restaurant that is having a 15% discount promotion their meal cost seven $78.38 before the discount. And they leave a 20% tip if the tip applies to the cost of the meal before the discount what is the total cost of the meal

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

What three things does a balanced equation show you?

What is the neutralization reaction