Search found 16 matches
- Sat Nov 02, 2019 10:50 pm
- Forum: Lewis Structures
- Topic: Lewis Structures
- Replies: 9
- Views: 451
Re: Lewis Structures
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.
- Sat Nov 02, 2019 10:43 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 2762830
Re: Post All Chemistry Jokes Here
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.
- Sat Nov 02, 2019 10:38 pm
- Forum: Ionic & Covalent Bonds
- Topic: Midterm
- Replies: 28
- Views: 1114
Re: Midterm
Its essentially from the beginning on the fundamentals up until the last slide on Friday.
- Sat Nov 02, 2019 10:34 pm
- Forum: Lewis Structures
- Topic: 2.B.11
- Replies: 2
- Views: 226
Re: 2.B.11
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.
- Sat Nov 02, 2019 10:32 pm
- Forum: Electron Configurations for Multi-Electron Atoms
- Topic: Coulombic potential energy
- Replies: 3
- Views: 777
Re: Coulombic potential energy
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.
- Sat Nov 02, 2019 10:29 pm
- Forum: Lewis Structures
- Topic: 2B. 3 part d
- Replies: 4
- Views: 243
Re: 2B. 3 part d
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.
- Sat Nov 02, 2019 10:25 pm
- Forum: Lewis Structures
- Topic: 2B. 9
- Replies: 3
- Views: 207
Re: 2B. 9
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...
- Sat Nov 02, 2019 10:21 pm
- Forum: Ionic & Covalent Bonds
- Topic: ionic vs. covalent
- Replies: 7
- Views: 346
Re: ionic vs. covalent
On the lewis structure you would connect with lines the covalent bonds since they are sharing the electrons.
- Sat Nov 02, 2019 10:15 pm
- Forum: Lewis Structures
- Topic: HW: 2.7
- Replies: 1
- Views: 186
Re: HW: 2.7
Whats the problem letter? Is it for example, 2A.7 or 2C. 7?
- Sat Nov 02, 2019 10:10 pm
- Forum: Ionic & Covalent Bonds
- Topic: 2B.9
- Replies: 1
- Views: 183
Re: 2B.9
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...
- Sat Nov 02, 2019 10:03 pm
- Forum: Coordinate Covalent Bonds
- Topic: Bond Formation
- Replies: 2
- Views: 222
Re: Bond Formation
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!
- Sat Nov 02, 2019 9:51 pm
- Forum: Coordinate Covalent Bonds
- Topic: Atom Sharing
- Replies: 5
- Views: 313
Re: Atom Sharing
Honestly, I think that's the only difference, I don't see any other difference. Hope this helps!
- Sat Nov 02, 2019 9:49 pm
- Forum: Ionic & Covalent Bonds
- Topic: Electron Distortion
- Replies: 4
- Views: 253
Re: Electron Distortion
It's when the electrons of the anion are attracted to the cation, therefore causing the shape of the electron density to change.
- Sat Nov 02, 2019 9:46 pm
- Forum: Polarisability of Anions, The Polarizing Power of Cations
- Topic: periodic trends
- Replies: 2
- Views: 232
Re: periodic trends
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!
- Sat Nov 02, 2019 9:40 pm
- Forum: Resonance Structures
- Topic: 2b. 23
- Replies: 2
- Views: 216
Re: 2b. 23
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."
- Sat Nov 02, 2019 9:33 pm
- Forum: Resonance Structures
- Topic: HW 2C.3
- Replies: 1
- Views: 168
Re: HW 2C.3
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!