CHEMISTRY COMMUNITY

Ixcel Guzman 4A

I think its the one with the lowest energy and ive been hearing that we also have to draw all the resonance structures but I remember Lavelle saying that he would take any structure.

Ixcel Guzman 4A

I asked my homie if he wanted to go to a party on Halloween and he said "Sodium Bromine Oxygen" :((((( because he had chem 14 A lecture on the next day.

Ixcel Guzman 4A

Its essentially from the beginning on the fundamentals up until the last slide on Friday.

Ixcel Guzman 4A

its essentially H-N-C-C-O-H with an hydrogen connected to the 1st carbon on the lewis structure and on the second carbon a double bond forms with oxygen. the first nitrogen also has a single bond with a hydrogen.

Ixcel Guzman 4A

in the book it says, "the total Coulomb potential energy V(r) is the sum of the individual coulombic attractions and repulsions." Hope this helps.

Ixcel Guzman 4A

to give it an octect, the Br is surrounded by 3 F with single bonds. F will have 6 electrons around them and Br will have 2 paired electrons. thats how they all form an octect.

Ixcel Guzman 4A

for a, its an ionic compound not a molecular as expected because there exists exceptions to the nonmetal-metal ionic compound. So it essentially would be the same N in the middle with H surrounding it and a - outside to show its power. then the Cl next to it with the electrons showing. for a, its a...

Ixcel Guzman 4A

On the lewis structure you would connect with lines the covalent bonds since they are sharing the electrons.

Ixcel Guzman 4A

Whats the problem letter? Is it for example, 2A.7 or 2C. 7?

Ixcel Guzman 4A

Although ionic compounds usually occur between metals and nonmetals, there are a few exceptions, such as ammonium chloride, which is an ionic compound. Its expected to it to be molecular because it contains only nonmetals. But it contains the NH4+ (ammonium) ion, combined with a chloride ion. Hope t...

Ixcel Guzman 4A

I think its more based on electronegativity. Coordinate covalent bonds between two main group elements are more polar and sensitive to phase changes than normal covalent bonds. Sorry, hope this helps!

Ixcel Guzman 4A

Honestly, I think that's the only difference, I don't see any other difference. Hope this helps!

Ixcel Guzman 4A

It's when the electrons of the anion are attracted to the cation, therefore causing the shape of the electron density to change.

Ixcel Guzman 4A

Yes, it essentially follows the radii trend on the periodic table, so up the rows and to the right on the columns polarizing power decreases. Hope this helps!

Ixcel Guzman 4A

Im not sure what problem you are referring to because 2b. 23 asks to "Determine the formal charge on each atom in the following molecules. Identify the structure of lower energy in each pair."

Ixcel Guzman 4A

I remember Dr. Lavelle saying something about if the problem had resonance structures, then we could draw which ever structure we wanted and it would count. I would draw the most stable one though and show that there are more resonance structures. Hope this helps!

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Re: Lewis Structures

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