How does VB theory treat the benzene molecule? (Draw sketches describing the orbital overlaps and the bond angles.)

What does the dividend-capture theory imply about the volume of trade in a stock around the ex-dividend day?

Bohr described the hydrogen atom as an electron orbiting a hydrogen nucleus. Although certain aspects of his theory are still valid, his theory agreed quantitatively with experiment only in the case of the hydrogen atom. In what way does quantum mechanics change Bohr's original picture of the hydrogen atom?

Earth rotates much faster than Venus. How does the giant impact theory of the Moon account for this fact?

Use VSEPR theory to predict the probable geometric structures of the molecules
(a) $\mathrm{O}_2 \mathrm{XeF}_2 ;$

How does an increase in temperature affect rate of reaction? Explain this effect in terms of the collision theory of the reaction rate.

Indiana University professors investigated first-year college students’ knowledge of astronomy ( Astronomy Education Review, Vol. 2, 2003). One concept of interest was the Big Bang theory of the creation of the universe. In a sample of 148 freshmen students, 37 believed that the Big Bang theory accurately described the creation of planetary systems. Based on this information, would you be willing to state that more than 20% of all freshmen college students believe in the Big Bang theory? How confident are you of your decision?

What purpose did Herbert Spencer have in interpreting Charles Darwin's theory of natural selection as "survival of the fittest"?

Use VSEPR theory to predict the structure of these polyatomic ions:

(a) ammonium ion
(b) sulfite ion
(c) phosphate ion

In the early twentieth century, what two experiments involving light and matter could not be explained by the wave theory of light?

Use the theory of congruences to verify that $89 | 2^{44}-1 \quad$ and $\quad 97 | 2^{48}-1$

Watson suggested a(n)- theory of learning, which hypothesizes that learning involves the formation of a direct connection between a st___________ and a r__________.

Which of these species has a longer bond, $\mathrm{B}_2$ or $\mathrm{B}_2$ ? Explain in terms of molecular orbital theory.

What do we mean by cognitive learning, and how does it vary from the conditioning theory approach to learning?