Search found 11 matches

by christy_zambrano_2E
Sun Mar 19, 2017 11:56 am
Forum: *Constitutional and Geometric Isomers (cis, Z and trans, E)
Topic: Practice Problems
Replies: 23
Views: 2331

Re: Practice Problems

Goodluck on the final everyone!
by christy_zambrano_2E
Mon Mar 13, 2017 12:45 pm
Forum: Administrative Questions and Class Announcements
Topic: Final Exam points
Replies: 7
Views: 838

Re: Final Exam points

Following up on on the mention about the points for posting on Chemistry Community, does anyone know if posting twice one week could replace the point of another week of not posting? I wasn't able to post last week bc I didn't have Wi-Fi at home and my phone wasn't working. thanks in advance! same ...
by christy_zambrano_2E
Wed Mar 08, 2017 4:38 pm
Forum: *Alkanes
Topic: Line Structures
Replies: 1
Views: 218

Re: Line Structures

No as long as there's the correct amount of molecules/atoms in the structure!
by christy_zambrano_2E
Fri Mar 03, 2017 9:56 am
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7578
Views: 1012588

Re: Chemistry Jokes

Xinjie Su 2J wrote:One property of liquid is that it can fit into containers of any shape and automatically takes up all the space.

So...cat is a liquid!!




This gives me so much joy! Such cute little kitties.
by christy_zambrano_2E
Wed Feb 22, 2017 1:04 am
Forum: Administrative Questions and Class Announcements
Topic: Quiz 2 Winter 2017
Replies: 160
Views: 15300

Re: Quiz 2 Winter 2017

So are we being quiz on knowing Activation energy? If so, does the equation ln[k2/k1]=Ea/R ((1/t2)-(1/T1)) work for all rate laws?
by christy_zambrano_2E
Tue Feb 21, 2017 9:20 pm
Forum: Administrative Questions and Class Announcements
Topic: Quiz 2 Winter 2017
Replies: 160
Views: 15300

Re: Quiz 2 Winter 2017

Can someone please help me with #3? I used the integrated rate law for first order and I got t=205 seconds For #3, it is a first order reaction, so you use the corresponding equation ln[A] = -kt + ln[A0] so, ln(.33) = -(.0068)t + ln(.75) ln(.33/.75) = -.0068t t = ln(.33/.75)/-.0068 t = 120 sec Than...
by christy_zambrano_2E
Sat Feb 18, 2017 7:00 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7578
Views: 1012588

Re: Post All Chemistry Jokes Here

too cute!
by christy_zambrano_2E
Fri Feb 10, 2017 12:54 pm
Forum: Interesting Applications: Rechargeable Batteries (Cell Phones, Notebooks, Cars), Fuel Cells (Space Shuttle), Photovoltaic Cells (Solar Panels), Electrolysis, Rust
Topic: Differences [ENDORSED]
Replies: 1
Views: 308

Differences [ENDORSED]

Hello! Can someone tell me the difference between
-Potential Difference (E˚cell= E˚cathode-E˚anode) and
- Cell Potential (E˚=E˚cathode-E˚anode)
by christy_zambrano_2E
Sun Jan 29, 2017 10:43 pm
Forum: General Science Questions
Topic: Sig Figs
Replies: 5
Views: 550

Re: Sig Figs

I also heard that we do NOT consider temperature when applying sig figs. Is this true? For example, say all the given units are in 4 sig figs and temperature is in 3, does our end calculation have three or four sig figs?
by christy_zambrano_2E
Sun Jan 22, 2017 5:20 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7578
Views: 1012588

Re: Post All Chemistry Jokes Here

Q: What element is derived from a Norse [censored]?
A: Thorium.
by christy_zambrano_2E
Fri Jan 13, 2017 3:40 pm
Forum: Phase Changes & Related Calculations
Topic: Most Helpful Resource
Replies: 14
Views: 1307

Re: Most Helpful Resource

I believe AAP helps a lot! I had it last quarter and felt it was a life savior, especially because I felt required to go. The program takes attendance and there in small groups. However, I think the best action to do is try out all at least once and see which system works best for you.

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