Search & Filtering
How does a paperclip float on water? Use surface tension and intermolecular forces in your answer. Also how do intermolecular forces cause surface tension?
Two jeepney leaves at the same terminal. Jeepney A heads North at a
constant speed of 40 ??/ℎ while jeepney B heads East at a constant
speed of 60 ??/ℎ. How fast is the distance between them changing
after 30 ?????
A multiple choice quiz has five questions, each with four answers, a through d. If you just guess on all of the questions, what is the probability that you get exactly four right?
If a cup of ice cream is selected,what is the probability that the cholesterol content will be more than 670 mg?
9. The antibiotic thiarubin-A was discovered by studying the feeding habits of wild
chimpanzees in Tanzania. The structure for thiarubin-A is
a. Complete the Lewis structure showing all lone pairs of electrons.
b. Indicate the hybrid orbitals used by the carbon and sulfur atoms in thiarubin-A.
c. How many σ and π bonds are present in this molecule?
10. Match the following
A B
Body fluid component Cu2+
Heme respiratory carrier Ca2+
1.5 to 2% of body mass Na+
Muscle and nerve control K+
Cofactor in enzyme, e transfer Co3+
Vitamin B12 Fe2+
Heart muscle function Mg2+
- Use the localized electron model to describe the bonding in hydrogen cyanide and
Phosgene (COCl2).
1. Give one example of a compound having a linear molecular structure that has an overall dipole moment (is polar) and another example of a linear molecule that does not have an overall dipole moment (is non-polar). Do the same for molecules that have trigonal planar and tetrahedral molecular structures.
1. Describe the type of bonding that exists in the F2(g) molecule. How does this type of bonding differ from that found in the HF(g) molecule? How is it similar?
1. Does a Lewis structure tell which electrons come from which atoms? Explain.
