Combined Gas Law 8. A gas has a volume of 39 liters at STP. What will its volume be at 4 atm and 25°C?​

Which type of stress results when two plates push against one another? a. compression b. tension c. force d. shear

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 is the empirical formula for c4h8o2