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Give the number of lone pairs for BF3.
Q21: Only two electrons,with opposing spins,are allowed in
Q22: The condensed electron configuration of arsenic,element 33,is
Q26: How many electrons are in the outermost
Q58: How much water must be added to
Q74: Which one of the following has a
Q104: Determine the boiling point of a solution
Q114: Draw the Lewis structure for BrCl<sub>3</sub>.What is
Q132: Determine the electron geometry (eg)and molecular geometry
Q133: Which of the following elements can form
Q138: Explain the difference between ΔH and ΔU.