Which noble gas is isoelectronic with the Sc3+ ion? Select the correct answer below: Ca Xe Kr Ar
What is true about a polar covalent bond? Select the correct answer below: The electrons are shared equally between the atoms in the bond. The electrons are transferred from one atom to the other in the bond. The electrons are shared unequally between atoms in the covalent bond. The electrons are absorbed into the nucleus of one atom in the bond.
Energy must be to break chemical bonds and when chemical bonds form. Select the correct answer below: added, released released, added added, added released, released
Draw the Lewis structure of nitrogen gas, N2, which makes up about 80% of the air we breathe Select the correct answer below: : N ¨ = N ¨ : : N ¨ − N ¨ : : N ¨ − N ¨ : : N ≡ N :
Which compound has a super octet (expanded valence) around its central atom? Select the correct answer below: CF4 NF3 SF4 OF2
How many of these compounds are hypervalent (have an expanded valence around the central atom)? CF4, SF4, PF3, PF5 Enter an integer for the total number of hypervalent compounds (i.e. 1, 2, 3, or 4). Do NOT enter the molecular formulas. Provide your answer below:
How many electrons are shared between the carbon atoms in ethylene? Select the correct answer below: One Two Four Eight
What is true about the resonance hybrid? Select the correct answer below: It is a snapshot of rapidly interconverting resonance structures. It does not fully describe the bonding in a molecule as well as an individual resonance structure. It is the average of the resonance structures and describes the bonding in a molecule. It is not useful in evaluating the bonding patterns in a molecule.