Crystals of hydrated chromium(III) chloride are green, have an empirical formula of CrCl3⋅6H2O, and are highly soluble. You may want to reference (Pages 993 - 997) Section 23.2 while completing this problem. Part A Write the complex ion that exists in this compound.

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

Which type of precipitation would most likely form when the surface air temperature is slightly below freezing and the air temperature increases as you move upward away from the ground?

What metric units would you use to measure the thickness of a key