CHEMISTRY COMMUNITY

Michelle Magana 2B

Sometimes my study music varies If i'm in a pure study mode it usually is hip hop beats/ lo fi music / basically music with no lyrics If I'm a little distracted and I need help focusing , I put more chaotic music like the mario kart soundtrack and the middle option is slowed down music of my favorit...

Michelle Magana 2B

Lewis focuses on electrons whereas Bronsted focus on protons
Lewis acid - e- acceptor
lewis base - e- donor

Bronsted acid - H+ donor
Bronsted base- accepts H+

Michelle Magana 2B

T shape molecular geometry has <90 degree bond angles. I also attached a chart which you can refer to.

Michelle Magana 2B

Chlorine has a higher electronegativity and helps stabilizes the anion

Michelle Magana 2B

Thank you ! I also listed the equations down and found a similar pattern that relates to what answer you want. (ph,pOH, [H+] etc.)

Michelle Magana 2B

I dont think theres a curve but the professor emailed students saying he will add 10 bonus points to the final, so hopefully that can help some students out

Michelle Magana 2B

According to the professors email, all the grades will be in by Saturday

Michelle Magana 2B

"Ferrate" is used if the iron in the coordination compound has an overall negative charge, hope this helps!

Michelle Magana 2B

We have until Thursday 10am to complete chemistry community comments

Michelle Magana 2B

Although I have two more finals, I feel so relieved after the chemistry final. Thankfully, I can focus on my next two exams with a healthier mindset.

Michelle Magana 2B

I think focusing on the textbook problems will help me understand the concepts better because your'e able to apply them rather than just understanding them over lecture

Michelle Magana 2B

Hi, you can use flashcards, quizlets, or even mnemonics to help remember the prefixes.

Michelle Magana 2B

Definitely tired but I need to study for finals :(

Michelle Magana 2B

Yes, we can rearrange the formula to
E(photon) - threshold energy = kinetic energy or excess energy

Michelle Magana 2B

Thank you ! This will be really helpful.

Michelle Magana 2B

I plan on picking up new hobbies such as baking and maybe I can finally try painting.

Michelle Magana 2B

Why can you never trust an atom?

They make up literally everything!

Michelle Magana 2B

I attend PLF sessions which help so much but I think I will try the UA session as well.

Michelle Magana 2B

I like to move around so usually i'm in my room for school work but I've been moving to my dinner table or even the living room to spice up life :)

Michelle Magana 2B

The shape is tetrahedral as the carbon has 4 areas of electronegativity with no lone pairs. And maybe sapling is marking you wrong because of a spelling error but I hope you were able to fix it !

Michelle Magana 2B

Hi, a helpful tip is that you can draw the lewis structure in the way you read the molecule. For example, H2CCH2 will have 2 hydrogens bonding with the 1st and last carbon. So you can draw the carbons first (c-c) then can add the hydrogens on both ends of the lewis structure. After drawing the lewis...

Michelle Magana 2B

First I found out how many electrons will go in the lewis structure by counting the valence electrons AsO4 -3 : As = 5 0 = 6 (4) = 24 + 3 electrons Electrons in lewis structure = 32 Then I set As as the central atom with 4 bonding 0's You can have As single bonded with the 4 Oxygens with 3 lone pair...

Michelle Magana 2B

I find the audio visual pre and post surveys to be very helpful!

Michelle Magana 2B

For the third structure, you can use the draw ring feature on sapling to connect the carbons as a triangle. Hope this helps!

Michelle Magana 2B

The questions can work as extra practice !

Michelle Magana 2B

I'm not 100% sure but increasing ion charge will also increase the number of electrons thus increasing the radius

Michelle Magana 2B

The h-h bond will not be considered a hydrogen bond. A hydrogen bond will be attracted to electronegative elements such as F,O, and N

Michelle Magana 2B

I'm not sure but the midterm will most likely give the formula along with the given information.

Michelle Magana 2B

I think it would be best to know what the concept is trying to explain rather than memorizing the whole process

Michelle Magana 2B

Im stuck on this problem too and I'm not really understanding the concept. Would it be better to draw the lewis structure or label which of the atoms is more electronegative

Michelle Magana 2B

i was also confused so this thread helped

Michelle Magana 2B

Edward Castro wrote:I just stayed in and did homework all night :(

me too :(

Michelle Magana 2B

thank you guys for the help, i was confused too

Michelle Magana 2B

You can print out the periodic table and equation sheet provided on the professors website. Hope this helped!

Michelle Magana 2B

I usually go on tik tok to give me a boost of serotonin or I listen to music that is perfect for laying on the group and starring at the ceiling. You can also try baking or napping.

Michelle Magana 2B

There isn't a restriction on calculators so you're welcome to use any (recommend: a scientific one) and the professors website provides a periodic table. Hope this was helpful !

Michelle Magana 2B

There isn't a restriction on calculators so you're welcome to use any !

Michelle Magana 2B

You can use your phone to show your work space and a laptop/ desktop to view the exam.

Michelle Magana 2B

9.109383 × 10−31 kg is the mass of a electron . I hope this helps and you can also check the professor's website for more constants and equations.

Michelle Magana 2B

Weeks 1-3 , you can also do some textbook problems for extra help/clarification.

Michelle Magana 2B

I agree! The music definitely helps make chemistry seem less intimidating.

Michelle Magana 2B

Spectral lines are essentially lines that denote how much energy is emitted or absorbed from the light source. Using these lines, we can determine atoms or molecules; hence, they play a key role in spectroscopy. The range of their emission or absorption allows us to match what atom or molecule also...

Michelle Magana 2B

Thank you for the visual example, I was confused on fridays lecture about waves but this helped clear some things up

Michelle Magana 2B

I was going to ask the same question as to how are people studying and this thread helped a lot ! Thank you to everyone

Michelle Magana 2B

Besides the sapling hw, is there anything else due for week 3?

Michelle Magana 2B

Madeline Marron 1I wrote:I'm pretty sure we can only gain a maximum of 5 points every week and those five posts are due every Sunday

Thank you for the clarification! I was a bit confused on when the posts were due.

Michelle Magana 2B

I was stuck on this problem too but this thread helped so much so thank you all !

Michelle Magana 2B

yea i'm assuming the assignment is automatically submitted

Michelle Magana 2B

Hi! Basically the rules for significant figures are: 1) non-zero numbers are always significant 2) any zeros between non-zero numbers are significant 3) a final zero in the decimal portion of a number is significant (ex. 111.900) 6 sigfigs * zeros after a decimal but before a non-zero don't count t...

Michelle Magana 2B

I was stuck on this problem for a while too! At first, I thought the double bonds had a bigger meaning for this problem but they didn't. I counted the elements (from the picture) for the molecular formula and later calculated the molar mass.

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