Paola Urena

Image for the badge Day One Done.
Day One Done earned for a 1-day streak!
Image for the badge Keep It Going.
Keep It Going earned for a 3-day streak!
Image for the badge Five Strong.
Five Strong earned for a 5-day streak!
Image for the badge Week of Focus.
Week of Focus earned for a 7-day streak!

23 Sep 21:05

img_0159.JPEG

I wish there were videos when you guys talk about going to VSPER theory to naming IUPAC. Like I have these ones, and I need some help with those. 

Is there a list with the naming, meaning like stamp 7:47, like where i can guide myself to see what are the names of all of them...

11 Sep 20:08

screenshot-2025-09-11-at-100346-pm.png

I am very confused with minute 28.23 (I attached a picture). Melissa says that the first structure has 1 Hydrogen, which I deduced is because Carbon wants to complete its four bonds. She says that the second resonance structure has 2 hydrogens as well. So why would we put a + charge to form 3 bonds, if carbon prefers to have 4?. Would that be because we are breaking the double bond, and when we break the double bond, we need to put the charge to create 3 instead? so it's looks different? cause thought,  wouldn't it like to be a (-) charge since it wants 4 bonds...

Hopefully you can see my question. 

img_9865.jpg

I have a question, and I'm sorry again. At first, with the black points, they draw the structure like the following (i will attach a picture, and i drew what I meant too. And then on stamp 45:44 she did it differently than the first time. Would the picture that I sent still be correct?

screenshot-2025-09-07-at-93228-pm.png

I have a question: how would I know how to start the bond line structure VSEPR? In stamp 52.07, we start the structure differently from stamp 37.39. I will attach pictures so it's better to understand. The picture that I attached was stamp 37.39. 

I know that probably we started like that to add the Hydrogens, but is there any other reason, and how would I know? 

Chemmunity Team okay, thank u!

I have a question regarding 7:25.. In previous reviews, you said that oxygen needs the 2 groups of lone pairs when its double double-bonded like that, so why is it not like that in the video?