Which of these has a polar covalent bond in the compound where electrons are shared, but not equally?

How many grams of KNO3 would be needed to prepare three liters (3.00 L) of 2.35 M KNO3 solution?

Which of the following is a property of light?

What is this statement called:  “Each orbital of a given sublevel must be occupied by a single electron having the same spin before pairing of the electrons begins.”

Which of the following properties increases with increasing atomic number among the representative elements of period two?

Which of the following properties increases with increasing atomic number among the representative elements of period two?

Which of these is paramagnetic? Consider whether electrons are paired or not.

What are the spectator ions if sodium phosphate reacts with barium nitrate to give barium phosphate and sodium nitrate? HINT: Start with a balanced equation showing (s) for the precipitate, if any.

Which term is used for a chemical equation in which those ions and molecules actually involved in the reaction are shown, but any spectator ions are omitted.   Example:    Ag+   +   Cl-     AgCl(s) 

Which of these is paramagnetic? Consider whether electrons are paired or not.