Check all the statements that describe applications and properties of substances that result from intermolecular forces.
the ability of frogs to breathe underwater
the ability of water to form bubbles
the formation of a meniscus in a graduated cylinder with water
the inability of water to mix with oil
the melting point of a substance
the hardness of a substance
the ability of detergents to clean clothes

Noble gases are the most reactive elements on the periodic table. a. true b. false

In saturated organic compounds, all the bonds between carbon atoms are called?

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