Halogens form polyhalide ions. Sketch Lewis electron dot structures and molecular structures for the following ions:\

$$\mathrm{ClF}_2{ }^{+}$$

Determine the degree of unsaturation and then draw possible structures for noncyclic compounds with the following molecular formulas: a.

$$C_3H_6,$$

b.

$$C_3H_4,$$

c.

$$C_4H_6$$

Four federal laws and subsequent amendments underpin U.S. environmental protection. Identify these laws.

Write a molecular formula for each compound, and indicate the oxidation state of the group SA element in each formula: magnesium arsenide.

Draw the Lewis structure for each of the following molecules or ions, and predict their electron-domain and molecular geometries:

$$\mathrm { AsF } _ { 3 }$$

Use analytical methods to find all local extrema of the function f(x)=

$$x ^ { 1 / x }$$

, for x>0. Verify your work using a graphing utility.

Name the proper three-dimensional molecular shapes for each of the following molecules or ions, showing lone pairs as needed: $CCl_2Br_2$

Draw structural formulas for the three secondary amines with the molecular formula $\mathrm{C}_{4} \mathrm{H}_{11} \mathrm{N}$.

Calculate the molecular (formula) mass of each compound: (a) iron(ll) acetate tetrahydrate; (b) (c)

Name the proper three-dimensional molecular shapes for each of the following molecules or ions, showing lone pairs as needed: $NF_3$

Explain why the concept of delocalized molecular orbitals is essential to an understanding of bonding in the benzene molecule, C$_6$H$_6$.

Use analytical methods and/or a graphing utility to identify the vertical asymptotes (if any) of the following functions. $h(x)=\frac{\cos x}{(x+1)^{3}}$

The molecular formula of allicin, the compound responsible for the characteristic smell of garlic, is

$$C_6H_{10}OS_2$$

What is the molar mass of allicin?

Assuming that the atoms form the normal number of covalent bonds, give the molecular formula of the simplest compound of silicon and chlorine atoms.