1. What is the contour interval? 2. Which side of the map has a gradual slope? Why?
3. How many peaks are visible?
4. Is there a body of water? How do you know?
5. What is the difference in elevation from point A to B?
6. Would it be easier to hike going East or West? Why?
7. What is the difference in elevation from point C to F?
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What pressure will be exerted by 0.675 moles of a gas at 25*c if it is in a 0.750-l container?

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

Aperfume bottle is dropped in the corner of a room. the odor of the perfume can be detected on the other side of the room. which statement best describes this observation?