What is the hybridization of the carbon atom notated with the arrow in the molecule shown below?

How many equivalent resonance structures can be drawn for the nitrate ion (NO3-)?

Paying Attention in Lecture Question! During our Ch. 7 lecture, Dr. Briggs played a video clip from the British TV show, Braniac where the hosts threw various samples into a bathtub full of water.  What were these samples?

Which of the following molecules has three equivalent resonance structures?

What is the formula of the compound, barium peroxide?

The two equivalent resonance forms of benzene are shown below: Which of these statements is true?    

Which of the following species is isoelectronic with krypton (Kr)?

All of the following properties are associated with the Noble Gases except:

The electron configurations of five different elements are shown below. Which of these elements is expected to have the largest second ionization energy (IE2)?

The element Ar and the ions Ca2+, K+, and Cl- have the same number of electrons.  Why does the chloride ion (Cl -) have the largest radius of this isoelectronic series?