. Laughing gas is used by dentists as an anesthetic. If a 10.0 L tank of laughing gas contains 1.26 moles N2O at 23°C, what is the pressure (mmHg) in the tank?

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

How does the motion of particles in a gas change as the gas cools

How do dying stars contribute to the formation of planets