Search found 29 matches

by Yasmin Olvera 1D
Tue Jul 30, 2019 2:31 pm
Forum: Octet Exceptions
Topic: breaking the octet
Replies: 7
Views: 532

Re: breaking the octet

Yes I believe this applies to period 3 elements.
by Yasmin Olvera 1D
Tue Jul 30, 2019 2:27 pm
Forum: Dipole Moments
Topic: Effect of size [ENDORSED]
Replies: 7
Views: 551

Re: Effect of size [ENDORSED]

I think because Van der Waals forces depend on size. he bigger the size, the greater the force due to the electron clouds.
by Yasmin Olvera 1D
Tue Jul 30, 2019 12:52 pm
Forum: Sigma & Pi Bonds
Topic: Pi Bonds [ENDORSED]
Replies: 3
Views: 294

Pi Bonds [ENDORSED]

Why do Pi bonds not allow free rotation? Is this always the case?
by Yasmin Olvera 1D
Tue Jul 30, 2019 12:51 pm
Forum: Lewis Structures
Topic: Structures [ENDORSED]
Replies: 1
Views: 189

Structures [ENDORSED]

Should we be taking the formal charge every time we do a Lewis Structure? Or is that only when specifically asked in the question?
by Yasmin Olvera 1D
Tue Jul 30, 2019 12:12 pm
Forum: Ionic & Covalent Bonds
Topic: Ionic vs covalent
Replies: 8
Views: 249

Re: Ionic vs covalent

Jennifer Zhou 1A wrote:if the electronegativity difference is greater than 2, it has ionic bond
if the electronegativity difference is less than 1.5, it has covalent bond


How would we go about calculating electronegativity?
by Yasmin Olvera 1D
Sun Jul 21, 2019 7:03 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Polar v. Nonpolar
Replies: 11
Views: 306

Re: Polar v. Nonpolar

Do dipoles influence if an atom has polar or nonpolar bonds?
by Yasmin Olvera 1D
Sun Jul 21, 2019 7:01 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Bond Angles
Replies: 1
Views: 209

Bond Angles

If there are designated shapes already, does this mean all atoms have fixed angles?
by Yasmin Olvera 1D
Sun Jul 21, 2019 6:58 pm
Forum: Hybridization
Topic: Electrons
Replies: 13
Views: 361

Electrons

What does it mean when an electron is promoted?
by Yasmin Olvera 1D
Sun Jul 21, 2019 6:55 pm
Forum: Hybridization
Topic: Pi and Sigma Bonds
Replies: 17
Views: 322

Re: Pi and Sigma Bonds

I believe for Single bond it is a sigma bond .
Double bond is a sigma bond plus on pi bond.
A triple bond is a sigma bond plus two pi bonds .
by Yasmin Olvera 1D
Fri Jul 19, 2019 3:20 pm
Forum: Ionic & Covalent Bonds
Topic: Radicals
Replies: 7
Views: 418

Re: Radicals

Radicals are unpaired electrons.
by Yasmin Olvera 1D
Fri Jul 19, 2019 3:13 pm
Forum: Ionic & Covalent Bonds
Topic: Notation of electron configurations of ions
Replies: 5
Views: 316

Re: Notation of electron configurations of ions

Since As is in the fourth period it will include 3d10 in its original configuration
by Yasmin Olvera 1D
Sun Jul 14, 2019 11:46 pm
Forum: Ionic & Covalent Bonds
Topic: Ground State
Replies: 13
Views: 495

Re: Ground State

Actually the configuration for Cu is [Ar}3d^9 4s^2 but because 3d^9 is so close to have a complete shell it steals an electron from 4s^2 taking away one electron and reducing it to [Ar]3d^10 4s^1. Lastly because Cu^+ has the plus sign it means you're removing an electron versus in the hypothetical ...
by Yasmin Olvera 1D
Sun Jul 14, 2019 11:45 pm
Forum: Ionic & Covalent Bonds
Topic: Ground State
Replies: 13
Views: 495

Re: Ground State

Karolina herrera1F wrote:This would be right only because cu+ is an exception so instead of it being what you first assumed the 1 from the s would travel over to the d which would make it d^10 because of cu+ being an exception.


Oh okay, because when I counted it and went through the process I got 9 not 10 for the D orbital
by Yasmin Olvera 1D
Sun Jul 14, 2019 11:42 pm
Forum: Ionic & Covalent Bonds
Topic: Homework 3.5
Replies: 7
Views: 365

Re: Homework 3.5

jlinwashington1B wrote:I was wondering the same thing because the s and p orbital is before the d orbital, right??


Thats what i thought as well! And when I checked the answer I was confused.
by Yasmin Olvera 1D
Thu Jul 11, 2019 11:44 am
Forum: Electron Configurations for Multi-Electron Atoms
Topic: 6th edition 19b [ENDORSED]
Replies: 2
Views: 281

Re: 6th edition 19b [ENDORSED]

The configuration for Sn would be [Kr]4d^(10)5s^(2)5p^(2). HOWEVER, since it loses four electrons, it becomes Sn+4. The four lost would be those on the outer shells being 5s^(2)5p^(2). Hance the anser is [Kr]4d^(10).
by Yasmin Olvera 1D
Thu Jul 11, 2019 11:40 am
Forum: Wave Functions and s-, p-, d-, f- Orbitals
Topic: Number of orbitals given quantum numbers
Replies: 3
Views: 219

Re: Number of orbitals given quantum numbers

I believe it is 4 orbitals since s-shell can have 1 and p-shell can have 3.

The d-shell has 5 and f shell has 7. But since we are only going to n=2 it would be 4.
by Yasmin Olvera 1D
Thu Jul 11, 2019 11:35 am
Forum: Ionic & Covalent Bonds
Topic: Ground State
Replies: 13
Views: 495

Ground State

The ground state for Copper ion Cu+ was being asked for. I thought it would be [Ar]3d^(9)4s^(1)

However, the correct answer is [Ar]3d^(10).

Can someone explain the reasoning behind this?
by Yasmin Olvera 1D
Thu Jul 11, 2019 11:28 am
Forum: Ionic & Covalent Bonds
Topic: Homework 3.5
Replies: 7
Views: 365

Re: Homework 3.5

Maybe try writing out the long ground-state to help you understand why that is correct since it will be included in the [Xe}
by Yasmin Olvera 1D
Thu Jul 04, 2019 4:19 pm
Forum: Balancing Chemical Reactions
Topic: Balancing Equations
Replies: 6
Views: 269

Re: Balancing Equations

jlinwashington1B wrote:I remember going over a problem in discussion that required algebra in order tp balance equations... Can someone help me to understand this concept?


I also feel like some problems require more strategies like algebra and would want some clarification as well.
by Yasmin Olvera 1D
Thu Jul 04, 2019 4:18 pm
Forum: Balancing Chemical Reactions
Topic: Balancing Equations
Replies: 6
Views: 269

Re: Balancing Equations

I know the ones that you save for last are the ones that are by themselves like "O"(oxygen in most cases). But thank you for sharing your method with me
by Yasmin Olvera 1D
Wed Jul 03, 2019 5:30 pm
Forum: Balancing Chemical Reactions
Topic: Balancing Equations
Replies: 6
Views: 269

Balancing Equations

What kind of strategies are best to balance equations that need multiple chnages to the equations.
by Yasmin Olvera 1D
Wed Jul 03, 2019 5:20 pm
Forum: General Science Questions
Topic: Grading for the Course
Replies: 4
Views: 354

Re: Grading for the Course

The TA also said the maximum amount of points you can accumulate is 6 points. So you can not try do all your points at the end of the quarter if that makes sense.
by Yasmin Olvera 1D
Wed Jul 03, 2019 5:16 pm
Forum: Significant Figures
Topic: Determining sig figs
Replies: 10
Views: 618

Re: Determining sig figs

I believe it would be 3 sig figs.
by Yasmin Olvera 1D
Sat Jun 29, 2019 10:47 am
Forum: Balancing Chemical Reactions
Topic: Why do we balance chemical equations?
Replies: 13
Views: 581

Re: Why do we balance chemical equations?

To show the conservation of mass. Also my TA said not to assume every chemical equation we get on the exam will be balanced. He said to verify everytime we are presented with an equation to check ourselves that it is balanced.
by Yasmin Olvera 1D
Fri Jun 28, 2019 3:18 pm
Forum: Student Social/Study Group
Topic: Peer Learning
Replies: 5
Views: 365

Re: Peer Learning

Will AAP be holding Peer Learning Sessions as well? I know they have some during the regular school year.
by Yasmin Olvera 1D
Fri Jun 28, 2019 3:13 pm
Forum: Student Social/Study Group
Topic: Test Studying Strategies
Replies: 6
Views: 325

Re: Test Studying Strategies

I am going to go over the homework problems, the examples given in the textbook, the problems posted on the modules, and the worksheets posted by the UAs. I am also going to go over what we should know conceptually from outline 1 (i.e use SI units, Convert units, ect.). The worksheet answer sheets ...
by Yasmin Olvera 1D
Fri Jun 28, 2019 3:11 pm
Forum: Student Social/Study Group
Topic: Test Studying Strategies
Replies: 6
Views: 325

Re: Test Studying Strategies

nicknavejas1B wrote:I think the route im going to go with is the use of hw problems as a guide also. Ive taken this class before but dropped it shortly after the first exam, the questions were very similar to the hw problems.


Thank you, the test is going to be only on the fundamentals chapter correct?
by Yasmin Olvera 1D
Wed Jun 26, 2019 10:17 pm
Forum: Student Social/Study Group
Topic: Test Studying Strategies
Replies: 6
Views: 325

Test Studying Strategies

Does anyone have any techniques or strategies they will be using to study for our upcoming test this next week?
by Yasmin Olvera 1D
Wed Jun 26, 2019 10:05 pm
Forum: Student Social/Study Group
Topic: Peer Learning
Replies: 5
Views: 365

Peer Learning

Hello, I was wondering if anyone knows if there are going to be Peer Learning Sessions for this course. The Professor had mentioned it but I did not see any sessions to register for online.

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