When a liquid is poured from a tall narrow cylinder into a short, wide beaker, a. its shape changes but its volume stays the same b. its shape changes and its volume expands to fill the beaker c. its shape remains the same but its volume expands to fill the beaker d. its shape and volume remain the same asap

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

At 20°c, a sample of h2o liquid and a sample of co2 gas each have the same average kinetic energy. why is one a liquid and the other a gas at this temperature?

What is the indicator of the number of ions in solution? the amount of conductivity the amount of precipitate the amount of solute added