Search found 16 matches

by MichelleCarter_1F
Sun Mar 19, 2017 1:21 pm
Forum: *Free Energy of Activation vs Activation Energy
Topic: Endergonic and exergonic free energy reaction profiles?
Replies: 2
Views: 945

Re: Endergonic and exergonic free energy reaction profiles?

For an endergonic reaction, the reaction is not spontaneous, so energy is taken in. Thus, the energy of the products would be higher than the reactants. For an exergonic reaction, energy is released and thus the products have lower energy than the reactants. also see this cool Khan Academy diagram o...
by MichelleCarter_1F
Fri Mar 10, 2017 9:42 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7609
Views: 1020144

Re: Post All Chemistry Jokes Here

Bacteria is the only culture some people have.
by MichelleCarter_1F
Wed Feb 22, 2017 11:33 am
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7609
Views: 1020144

Re: Post All Chemistry Jokes Here

"You should be a chem major."
-quoted from Irene Davila Mejia
by MichelleCarter_1F
Fri Feb 17, 2017 11:12 am
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7609
Views: 1020144

Re: Post All Chemistry Jokes Here

Silver walks up to Gold in a bar and says, "AU, get outta here!"
by MichelleCarter_1F
Sun Feb 12, 2017 12:13 pm
Forum: General Science Questions
Topic: Subscripts in a reaction
Replies: 2
Views: 396

Re: Subscripts in a reaction

From my experience, it was not that significant to have the subscripts in Chem 14A. However, they can be extremely useful if you're working through an extensive problem. Overall, I have never been penalized for not including them.
by MichelleCarter_1F
Sat Jan 28, 2017 4:14 pm
Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
Topic: Importance of Sig Figs
Replies: 2
Views: 346

Re: Importance of Sig Figs

hey! I had Lavelle last quarter, and it depends on your TA. My TA said that he looks more for units than sig figs, but that sig figs are still important. In general, just check sig figs to make sure you aren't docked points. :)
by MichelleCarter_1F
Sun Jan 15, 2017 8:07 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7609
Views: 1020144

Re: Post All Chemistry Jokes Here

If you're not part of the solution, you're part of the precipitate.
by MichelleCarter_1F
Fri Dec 02, 2016 4:59 pm
Forum: Calculating pH or pOH for Strong & Weak Acids & Bases
Topic: Names of Acids and Bases on the Final Exam
Replies: 1
Views: 276

Re: Names of Acids and Bases on the Final Exam

Hey! I went to a review session yesterday and the TA said you would basically be shooting yourself in the foot if you didn't know all of the strong bases and acids. You should probably just be familiar with all of the weak ones. The TA said Lavelle would probably give us the formula (ex- HCl instead...
by MichelleCarter_1F
Sun Nov 13, 2016 4:34 pm
Forum: Naming
Topic: Trans and Cis
Replies: 3
Views: 426

Re: Trans and Cis

hey! I was also confused about cis and trans molecules awhile ago, and I think the image I attached helps prove the comment before mine. Cis and trans molecules are going to be really important as we advance in chemistry, since structure plays a huge role in function (as we've all heard multiple tim...
by MichelleCarter_1F
Wed Nov 02, 2016 3:38 pm
Forum: Quantum Numbers and The H-Atom
Topic: How to find magnetic spin
Replies: 2
Views: 508

Re: How to find magnetic spin

hello! I'm pretty sure we won't be asked to calculate magnetic spin, but it's good to remember that on an orbital diagram (this is probably not the correct name, but it's the diagram with the arrows pointing up and down to denote electrons in different orbitals) that an upwards pointing line is indi...
by MichelleCarter_1F
Fri Oct 28, 2016 12:36 pm
Forum: Electron Configurations for Multi-Electron Atoms
Topic: Adding electrons for exceptions
Replies: 3
Views: 462

Re: Adding electrons for exceptions

Hello! Here is the electron configuration of Cu: [Ar] 3d10 4s1. Then, the ion has a 2+ charge so two electrons are removed. One is taken from the 4s sub-shell, the other from the 3d sub-shell. So the electron configuration of Cu2+ is: 1s2 2s2 2p6 3s2 3p6 3d9. The noble gas electron configuration is ...
by MichelleCarter_1F
Fri Oct 21, 2016 11:25 pm
Forum: Coordinate Covalent Bonds
Topic: Polar Covalent vs. Unequally Shared
Replies: 3
Views: 808

Polar Covalent vs. Unequally Shared

Hello friends,
I was wondering if I am incorrect that assuming polar covalent bonds and covalent bonds with unequally shared electrons are the same. If not, what is the difference? I didn't really understand how they were disparate.
Thanks!
by MichelleCarter_1F
Fri Oct 14, 2016 11:00 am
Forum: General Science Questions
Topic: Formula Sheet
Replies: 3
Views: 780

Re: Formula Sheet

The formula sheet given on the quiz does not have ALL the formulas on the back of the laminated periodic table, but it has every formula you need!
by MichelleCarter_1F
Thu Oct 06, 2016 8:08 pm
Forum: Balancing Chemical Reactions
Topic: Naming Chemical Formula and Balancing Chemical Equations [ENDORSED]
Replies: 5
Views: 1190

Re: Naming Chemical Formula and Balancing Chemical Equations [ENDORSED]

The equation would be N2 + O2 --> 2NO. You aren't trying to balance the charges between nonmetals, since it isn't really relevant. The number of atoms is the only concern due to conservation of mass.
by MichelleCarter_1F
Fri Sep 30, 2016 12:12 pm
Forum: Administrative Questions and Class Announcements
Topic: Fundamentals
Replies: 2
Views: 354

Re: Fundamentals

Hey! So I was wondering this myself, and I did some reading on the topic awhile ago. It seems as if a hydrogen atom was originally used as the standard of measurement, since this would be the logical atom to use due to its size. The problem later on in the discovery of the elements was that a hydrog...
by MichelleCarter_1F
Wed Sep 28, 2016 9:54 pm
Forum: Student Social/Study Group
Topic: Hedrick Summit Study Group Chem 14A
Replies: 29
Views: 2570

Re: Hedrick Summit Study Group Chem 14A

I would love to join this group!

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