Search found 44 matches

by Vanessa Perez
Fri Nov 27, 2020 2:26 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Bond Angles
Replies: 25
Views: 69

Re: Bond Angles

Here is a helpful summary of the molecular structures that we have done so far and their corresponding bond angles. Please feel free to add to this list! -linear 180 degrees -trigonal planar 120 degrees, -trigonal pyramidal 109.5 degrees -trigonal bipyramidal 90 degrees, 120 degrees -octahedral 90 ...
by Vanessa Perez
Fri Nov 27, 2020 2:25 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 8253
Views: 1445351

Re: Post All Chemistry Jokes Here

What kind of fish is made out of 2 sodium atoms?

2 Na

get it? (tuna)
by Vanessa Perez
Fri Nov 27, 2020 2:23 pm
Forum: Octet Exceptions
Topic: Expanded Octet Question
Replies: 8
Views: 26

Re: Expanded Octet Question

Xe is permitted to expand its octet because of its energy level. It is able to hold 12 electrons. Another example of expanded electron is P which can hold up to 10 electrons.
by Vanessa Perez
Fri Nov 27, 2020 2:19 pm
Forum: Student Social/Study Group
Topic: Final Exam Tips
Replies: 24
Views: 95

Re: Final Exam Tips

I tend to do all the practice problems assigned and then try to explain answers from sapling. I like to read the book to understand topics conceptually
by Vanessa Perez
Fri Nov 27, 2020 2:17 pm
Forum: Hybridization
Topic: 2sp^2 vs 3sp^2
Replies: 6
Views: 24

Re: 2sp^2 vs 3sp^2

yes that it correct! follow the energy levels
by Vanessa Perez
Wed Nov 18, 2020 5:19 pm
Forum: Student Social/Study Group
Topic: CHEM 14B Time Conflict
Replies: 13
Views: 101

Re: CHEM 14B Time Conflict

yea I don't think we 100% know if its asynchronous or not yet. So hopefully soon
by Vanessa Perez
Wed Nov 18, 2020 5:11 pm
Forum: Lewis Structures
Topic: When to add double or triple bonds
Replies: 4
Views: 14

Re: When to add double or triple bonds

Something I like to do to decide to add a triple or double bond is always finding the FC because sometimes, lone pairs is better than double bonds in relation to FC.
by Vanessa Perez
Wed Nov 18, 2020 5:09 pm
Forum: Student Social/Study Group
Topic: Favorite TV shows
Replies: 142
Views: 491

Re: Favorite TV shows

I was really into That's 70's show, but then Netflix took it down and I did not have the chance to finish it... rip. A show that I was really into before this was Prison Break. It is a pretty good show!!
by Vanessa Perez
Wed Nov 18, 2020 5:05 pm
Forum: Electron Configurations for Multi-Electron Atoms
Topic: 3d vs 4s orbitals
Replies: 4
Views: 28

Re: 3d vs 4s orbitals

yes 4s will generally always come after 3d because 3d has lower energy than 4s.
by Vanessa Perez
Wed Nov 18, 2020 5:02 pm
Forum: General Science Questions
Topic: Which would have lower ionization energy?
Replies: 13
Views: 61

Re: Which would have lower ionization energy?

Cl will have lower ionization energy because it is more to the right on the periodic table than O
by Vanessa Perez
Wed Nov 18, 2020 5:00 pm
Forum: Student Social/Study Group
Topic: post midterm 2
Replies: 27
Views: 236

Re: post midterm 2

Goodluck everyone who has not taken the midterm yet. I will be trying to catch up on my sleep after this!!
by Vanessa Perez
Thu Nov 12, 2020 6:35 pm
Forum: Student Social/Study Group
Topic: Exercising Our Minds and Bodies
Replies: 92
Views: 270

Re: Exercising Our Minds and Bodies

I like to keep my hands busy. I know this isn't really exercise, but I like to draw while listening to music when I am taking a break. Or even just go outside and get the mail haha
by Vanessa Perez
Wed Nov 11, 2020 2:52 pm
Forum: Formal Charge and Oxidation Numbers
Topic: Oxidization Numbers
Replies: 10
Views: 46

Re: Oxidization Numbers

OwenSumter_3D wrote:
oxidation.JPG


I found this guide for oxidation numbers online that I thought was helpful also.


thank youuuuu!!!!
by Vanessa Perez
Wed Nov 11, 2020 2:50 pm
Forum: Administrative Questions and Class Announcements
Topic: Step-Up Sessions
Replies: 3
Views: 28

Re: Step-Up Sessions

Yes they are still being held! these are the rest for today; Rosa Munoz 4-6 PM (Step-Up) & Matthew Tran 6-8 PM (Workshop)
by Vanessa Perez
Wed Nov 11, 2020 2:48 pm
Forum: Resonance Structures
Topic: sapling week5/6 hw Q4
Replies: 5
Views: 29

Re: sapling week5/6 hw Q4

Hey yall! When choosing which resonance structure is least likely to contribute to the overall structure, would it be the Lewis Structure with the most charges? Or does this way of thinking not necessarily work all the time?
by Vanessa Perez
Wed Nov 11, 2020 2:44 pm
Forum: Ionic & Covalent Bonds
Topic: Octet rule exceptions
Replies: 15
Views: 70

Re: Octet rule exceptions

Thank you everyone who answered this question. I was having trouble understanding this topic too
by Vanessa Perez
Wed Nov 11, 2020 2:42 pm
Forum: Student Social/Study Group
Topic: How are you studying?
Replies: 196
Views: 905

Re: How are you studying?

I have been studying by doing the problems from the syllabus. There is an answer key on sapling website, so when I am stuck I refer to that. The document is called Atkins 7e SSM. good luck studying everyone!!!!
by Vanessa Perez
Wed Nov 11, 2020 2:40 pm
Forum: Electron Configurations for Multi-Electron Atoms
Topic: F-block?
Replies: 7
Views: 29

Re: F-block?

I don't think we really need to worry about f-block for this class or at least not yet since we haven't really practiced f-block
by Vanessa Perez
Sun Nov 08, 2020 7:18 pm
Forum: Student Social/Study Group
Topic: Chemistry Among Us
Replies: 43
Views: 247

Re: Chemistry Among Us

someone needs to teach me how to play. I've never played.
by Vanessa Perez
Tue Nov 03, 2020 10:50 pm
Forum: Quantum Numbers and The H-Atom
Topic: Are there subshells past f?
Replies: 28
Views: 113

Re: Are there subshells past f?

Even though I am pretty sure for this class we only need to be comfortable with s,p,d,f-orbitals, there are g,h,i,k,l orbitals and so on. However, I find it interesting that there is no j orbital.
by Vanessa Perez
Tue Nov 03, 2020 10:45 pm
Forum: Administrative Questions and Class Announcements
Topic: Second Midterm Date
Replies: 9
Views: 70

Re: Second Midterm Date

Pretty sure it will be like the first midterm. During your discussion, 55min.
by Vanessa Perez
Tue Nov 03, 2020 10:43 pm
Forum: Electronegativity
Topic: Periodic Table Trend
Replies: 32
Views: 281

Re: Periodic Table Trend

Electronegativity increases going right on the periodic table because the number of protons in the nucleus increases, the electronegativity or attraction will increase. The nucleus brings in the electrons closer together because of the increase in attraction. Electronegativity will then decrease go...
by Vanessa Perez
Mon Nov 02, 2020 3:04 pm
Forum: General Science Questions
Topic: Sapling Homework
Replies: 5
Views: 67

Re: Sapling Homework

by going through the link on ccle it automatically logs you into sapling so I would say go to sapling through ccle.
by Vanessa Perez
Fri Oct 30, 2020 10:40 pm
Forum: Administrative Questions and Class Announcements
Topic: Midterm Exam Scores
Replies: 15
Views: 105

Re: Midterm Exam Scores

I hope you all did well on your exams! Pretty sure scores will be released early next week.
by Vanessa Perez
Tue Oct 27, 2020 8:26 pm
Forum: DeBroglie Equation
Topic: UA Session: Wavelength of the ejected electron
Replies: 2
Views: 44

Re: UA Session: Wavelength of the ejected electron

I am pretty sure you are doing it correctly, I would have done it the same way too.
by Vanessa Perez
Tue Oct 27, 2020 8:19 pm
Forum: *Shrodinger Equation
Topic: Delta V value
Replies: 5
Views: 48

Re: Delta V value

wow haha I was literally stuck on this problem for a while, it did not cross my mind that it was a mistake. Thank you all!
by Vanessa Perez
Tue Oct 27, 2020 8:15 pm
Forum: DeBroglie Equation
Topic: When to Use DeBroglie Equation vs E=hv Equation
Replies: 5
Views: 65

Re: When to Use DeBroglie Equation vs E=hv Equation

Thank you for answering Kailani, I was confused on when to use which equation. I actually did not know that one was for photons or light while the other was for electrons. I think there was a question like this in sapling.
by Vanessa Perez
Tue Oct 27, 2020 8:11 pm
Forum: SI Units, Unit Conversions
Topic: Temperature Conversions
Replies: 6
Views: 51

Re: Temperature Conversions

thank for clarifying, I was also a bit concerned on whether we would need to know temperature conversions, but it makes sense that it would be given in the problem if needed to convert.
by Vanessa Perez
Tue Oct 20, 2020 4:40 pm
Forum: Administrative Questions and Class Announcements
Topic: The Midterm
Replies: 9
Views: 58

Re: The Midterm

We will be able to use the constants and equations sheet but I did hear that he will update that sheet so if you print it out now, I suggest checking the updated one before the exam
by Vanessa Perez
Tue Oct 20, 2020 4:39 pm
Forum: Properties of Electrons
Topic: Mass of an e-
Replies: 2
Views: 37

Re: Mass of an e-

Most/All constants are given on the equation sheet. This includes of Planks constant, electron mass, speed of light, etc. Pretty helpful
by Vanessa Perez
Tue Oct 20, 2020 4:36 pm
Forum: SI Units, Unit Conversions
Topic: Conversions
Replies: 5
Views: 34

Re: Conversions

I would say still be comfortable with conversions especially since it can be confusing at times and being comfortable with them will save time on the exam.
by Vanessa Perez
Mon Oct 19, 2020 3:39 pm
Forum: DeBroglie Equation
Topic: Question about 10/19/2020 lecture regarding DeBrogile Equation example
Replies: 4
Views: 33

Question about 10/19/2020 lecture regarding DeBrogile Equation example

Hello all, today in lecture there was an example, (6.626 * 10^-34 Js)/((9.11 * 10^-31 kg)*(5.3*10^6m/s)). I am confused to where Dr.Lavelle got the mass if it was not listed in the question.
by Vanessa Perez
Fri Oct 16, 2020 3:56 pm
Forum: Administrative Questions and Class Announcements
Topic: wavelengths for light
Replies: 9
Views: 90

Re: wavelengths for light

if anyone knows where that resource is, I'd like to know too! I'm having trouble understanding this topic
by Vanessa Perez
Fri Oct 16, 2020 3:53 pm
Forum: Administrative Questions and Class Announcements
Topic: Midterm Format
Replies: 12
Views: 112

Re: Midterm Format

So if the midterm is multiple choice, will there still be opportunities to get partial credit for showing our work?
by Vanessa Perez
Wed Oct 14, 2020 2:46 pm
Forum: Properties of Light
Topic: Lecture Music [ENDORSED]
Replies: 6
Views: 103

Re: Lecture Music [ENDORSED]

loved the music today! very uplifting
by Vanessa Perez
Wed Oct 14, 2020 2:45 pm
Forum: Administrative Questions and Class Announcements
Topic: Sapling HW Grade [ENDORSED]
Replies: 10
Views: 379

Re: Sapling HW Grade [ENDORSED]

I think as long as you end up getting it correct (no matter how many times you attempt it or how many hints you get) you should still be getting 100%.
by Vanessa Perez
Wed Oct 14, 2020 2:43 pm
Forum: Administrative Questions and Class Announcements
Topic: wavelengths for light
Replies: 9
Views: 90

Re: wavelengths for light

thank you all! It would be beneficial to know the ranges! thank you for answering my question
by Vanessa Perez
Tue Oct 13, 2020 8:35 pm
Forum: Administrative Questions and Class Announcements
Topic: wavelengths for light
Replies: 9
Views: 90

wavelengths for light

Hello all, for the exams, will we be expected to memorize/ be comfortable with wavelengths of every color?
by Vanessa Perez
Wed Oct 07, 2020 2:40 pm
Forum: Limiting Reactant Calculations
Topic: Sapling Homework Question 10
Replies: 16
Views: 230

Re: Sapling Homework Question 10

Does anyone know if we get deducted points per every attempt we take on a question on sapling? Or do we get 100% even if we did some questions more than once as long as we get it correct? You can attempt the questions as many times as you want, and still get 100% as long as you get it correct. than...
by Vanessa Perez
Tue Oct 06, 2020 10:25 pm
Forum: Limiting Reactant Calculations
Topic: Sapling Homework Question 10
Replies: 16
Views: 230

Re: Sapling Homework Question 10

Does anyone know if we get deducted points per every attempt we take on a question on sapling? Or do we get 100% even if we did some questions more than once as long as we get it correct?
by Vanessa Perez
Mon Oct 05, 2020 2:31 pm
Forum: Molarity, Solutions, Dilutions
Topic: Units for Dilution Equation [ENDORSED]
Replies: 23
Views: 182

Re: Units for Dilution Equation [ENDORSED]

Quick question: is 0.987(10^-4)L the same as 9.87(10^-3)L??
by Vanessa Perez
Sun Oct 04, 2020 8:25 pm
Forum: Administrative Questions and Class Announcements
Topic: Advice from a Medical Student [ENDORSED]
Replies: 226
Views: 116478

Re: Advice from a Medical Student [ENDORSED]

thank you so much for the advice, it is very appreciated. Wish you all of luck in med school.
by Vanessa Perez
Sun Oct 04, 2020 8:13 pm
Forum: Student Social/Study Group
Topic: E-book and Sampling Link
Replies: 13
Views: 144

Re: E-book and Sampling Link

Hi! I was also concerned about my book order since I ordered it on Monday and still hasn't came. I am just planning on calling them because I have heard, from other students, that if you call them they can get you your order in a more timely manner, so maybe you can try the same!

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