CHEMISTRY COMMUNITY

Kendall_Dewey_2D

It also works if you have a device that isn’t Apple-related! I couldn’t use my laptop, but it eventually went through when I borrowed a PC!

Kendall_Dewey_2D

Hi! I think the theory is mainly for helping find the position of the electrons - I feel like understanding the concept is most beneficial as opposed to how to apply it when it comes to what might appear on the final!

Kendall_Dewey_2D

I think the format will mirror that of the previous midterms, but being comfortable with textbook problems is definitely a good idea!

Kendall_Dewey_2D

Jada1J wrote:In a recent step-up session, I was in the UA was saying that the grade breakdown is kind of a mystery but 50% is definitely considered a C. The UA also said it is most important to just get as many points as you can.

I heard this as well!

Kendall_Dewey_2D

I agree, mine took a couple days to stop showing a 7/10, but eventually switched over to a 10/10.

Kendall_Dewey_2D

Taking deep breaths and getting exercise during study breaks are my go-to tips!

Kendall_Dewey_2D

I'm going to do a lot of textbook problems and focus on where I struggle the most. I'll also definitely try to attend as many review sessions as possible that are offered by the TAs this week!

Kendall_Dewey_2D

abby hyman wrote:hey again kendall!! still missing you! Wish we were back in class with sam and brandee! I would love to do some midterm review over zoom with you! Text me and let me know when works best!

Hey Abby! Let's plan on doing a review for the final together, too, if you're free!

Kendall_Dewey_2D

An amphoteric compound has both acidic and basic character, which is shown depending on what it reacts with.

Kendall_Dewey_2D

I don't think how you write it matters too much, especially since the final is multiple choice. I just recall that Professor Lavelle wrote OH2 in lecture to show that oxygen was what was donating electrons, not Hydrogen.

Kendall_Dewey_2D

I think I will be taking 14B in winter and BL in spring, as I personally want to have a stronger foundation first before delving into lab stuff, but I've heard that either way you do it is fine! I'm planning on doing the same thing! I feel like knowing the textbook content well before taking the la...

Kendall_Dewey_2D

Also, the idea of a strong and weak acid or base is related to their ability to conduct electricity. If an acid or base conducts electricity strongly, it's a strong acid or base. If the acid or base conducts electricity weakly, it's weak.

Kendall_Dewey_2D

These ideas for studying for the final are all super helpful! Thanks for sharing!

Kendall_Dewey_2D

I believe it is cumulative and during a specific finals period that's posted on CCLE as opposed to during our discussions.

Kendall_Dewey_2D

The octet rule is broken when an atom has more than 8 valence electrons filling the outer orbital. Calculating the total electrons involved in a molecule and making sure to include the formal charge of each atom can help with this process. We can't forget about the exceptions to the octet rule, eith...

Kendall_Dewey_2D

I feel the same way- We just have to try our best and get as many points as we can!! Good luck!

Kendall_Dewey_2D

This link has a chart of common polyatomic ions I found to be helpful! http://www.chemistry.wustl.edu/~edudev/ ... /ions.html

Kendall_Dewey_2D

I think I will be taking 14B in winter and BL in spring, as I personally want to have a stronger foundation first before delving into lab stuff, but I've heard that either way you do it is fine!

Kendall_Dewey_2D

I heard next week, as well!

Kendall_Dewey_2D

The number of valence electrons can be quickly found depending on which group that the element is in on the periodic table. So, atoms in the 1st group have 1 valence electron, while atoms in the 8th group (noble gases) have 8, and don't forget to exclude the d block when you count the group!

Kendall_Dewey_2D

Cations are positively charged and anions are negatively charged. I remember this personally because to me anion sounds like onion and I have had a "negative" experience with onions. Weird way to remember, but it works for me!

Kendall_Dewey_2D

I think the textbook problems are really helpful, especially since they usually seem more challenging - it makes the homework easier to comprehend as well!

Kendall_Dewey_2D

I believe the larger the difference in electronegativity, the more electronegative the bond is, and for it to be polar, this difference must also be large.

Kendall_Dewey_2D

I felt the same way! I always feel better when I remember I've tried my best, even if the outcome isn't always what I want. We got it for this next midterm!

Kendall_Dewey_2D

This site has a really helpful graphic when it comes to memorizing the trends https://sciencenotes.org/periodic-table-trends/

Kendall_Dewey_2D

Definitely recommend downloading! If not, sometimes it helps to restart the browser you tried to open it in.

Kendall_Dewey_2D

This Socratic link gives a clear description of orbitals and what they represent: https://socratic.org/chemistry/the-elec ... -spd-and-f

It does a good job of breaking down the different s,p,d,f orbitals and explains the numbers as well!

Kendall_Dewey_2D

I was stuck on this question too- I found that it is easiest to solve by thinking of the number of spectral lines as equal to the number of possible transitions from n=7 to n=1. So, finding the wavelength range is the wavelength from to the transition from n=7 to n=6 and then the wavelength from to ...

Kendall_Dewey_2D

This link has some super clear and concise examples on when and how to use scientific notation that I found to be helpful, as it can be easy to be confused on this topic! https://calcworkshop.com/exponents/scientific-notation/

Kendall_Dewey_2D

https://scitechdaily.com/scientists-des ... roperties/

This is a really neat article I read this morning on the development of a new type of lightweight magnet with cool applications, particularly in regard to chemistry.

Kendall_Dewey_2D

One way I find it easier to stay focused at home is by setting a certain amount of time to do work, and designating specific breaks in between! It’s easier for me to concentrate for 30 minutes or whatever the time may be when I know I can have a 15 minute break afterward! :)

Kendall_Dewey_2D

These explanations helped so much - I was stuck on this one for a while. Thanks guys!

Kendall_Dewey_2D

Grey's Anatomy is such a classic! You should also try Hawaii 5-O - never gets old

Kendall_Dewey_2D

This Kahn Academy video is one I found to be interesting and informative in regard to this topic. https://www.khanacademy.org/science/ap- ... ion-energy

Kendall_Dewey_2D

Thank you to all who clarified this! - Was also wondering how to check, so super helpful!

Kendall_Dewey_2D

One main difference comes from how equally the electrons are shared between atoms in the bond. Electrons are shared between atoms in a covalent bond and donated to other atoms in the ionic bond. https://sciencenotes.org/ionic-vs-covalent-bonds/ This link offers a clear explanation :)

Kendall_Dewey_2D

I love to read a new book or an old favorite that takes my mind off of school or anything stressful! Getting exercise also helps me relax.

Kendall_Dewey_2D

Like the other posts say, degeneracy means that you have multiple orbitals with the same energy level, so with the one electron system, there are no shielding effects - therefore, all of the shells are energy-degenerate.

Kendall_Dewey_2D

I was also confused on this question - the explanation posted helps a lot. Thanks!!

Kendall_Dewey_2D

While black body radiation won't be on the midterm, this link has some neat information on the subject if you are interested! http://galileo.phys.virginia.edu/classe ... ation.html

Kendall_Dewey_2D

idella 1F wrote:Something interesting I read about this infrared molecule scientists discovered! :)
https://scitechdaily.com/near-infrared- ... -strategy/

Thank you for sharing this - super interesting to read!

Kendall_Dewey_2D

Here's a really cool article I found on a new discovery that combines tech with chemistry! https://www.cnbc.com/2020/10/24/how-a-d ... ustry.html

Kendall_Dewey_2D

Thank you so much for sharing this! It was really helpful and inspiring to read!

Kendall_Dewey_2D

https://socratic.org/questions/how-do-y ... of-photons I found this link helpful, as well!

Kendall_Dewey_2D

Hey Abby! It's just weeks 1-3! I believe that's up til question 21 in Sapling hw :)

Kendall_Dewey_2D

Ahh awesome! Thanks, Abby! Miss you too - I'll text you asap.

Kendall_Dewey_2D

Hi guys,

Would anyone be up for doing an extra review for the midterm via Zoom sometime this week?

Thanks!

Kendall_Dewey_2D

That would be awesome! Thank you!

Kendall_Dewey_2D

Textbook questions are super helpful! The other workshop sessions are great extra practice, too.

Kendall_Dewey_2D

I think Dr. Lavelle said he will provide a sheet of formulas/compounds we need for any problems on tests!

Kendall_Dewey_2D

https://www.youtube.com/watch?v=H5S4TRAzXhQ I found this video helpful in exploring this topic!

Kendall_Dewey_2D

I apologize if this question has been asked before, but is there a specific GroupMe for discussion 2D for Chem 14A? Thank you so much!

Kendall_Dewey_2D

On this same topic, is there a maximum amount of limiting reactants an equation can have? Thanks! It is highly unlikely that there will be more than one limiting reactant since this would require that the moles of two or more different reactants are exactly equal and completely react with each othe...

Kendall_Dewey_2D

I was also confused by this topic but found this link to be helpful on determining ratios! https://www.chem.tamu.edu/class/fyp/sto ... irical.htm

Kendall_Dewey_2D

On this same topic, is there a maximum amount of limiting reactants an equation can have?

Thanks!

Kendall_Dewey_2D

I have found this resource to be helpful in regard to when to use Avogadro's #! https://www.chemteam.info/Mole/Avogadro ... lcsII.html

Kendall_Dewey_2D

Here is another helpful link I have found for this topic! https://users.astro.ufl.edu/~rlpitts/Si ... igures.pdf

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