Search found 26 matches
- Sat Nov 14, 2020 7:35 am
- Forum: Electronegativity
- Topic: General Idea of Electronegativity [ENDORSED]
- Replies: 3
- Views: 279
Re: General Idea of Electronegativity [ENDORSED]
Be able to compare bonds as being more ionic (or covalent) by knowing trends.
- Sat Nov 14, 2020 7:30 am
- Forum: Ionic & Covalent Bonds
- Topic: Midterm 2 DNA base pairs [ENDORSED]
- Replies: 1
- Views: 509
Re: Midterm 2 DNA base pairs [ENDORSED]
Be able to identify the interactions between them: yes
Remember/know the entire structure: no
Remember/know the entire structure: no
- Fri Nov 13, 2020 6:30 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Chem Community grading [ENDORSED]
- Replies: 2
- Views: 248
Re: Chem Community grading [ENDORSED]
I answered it many times. 5 posts per week. See: • Syllabus • Test and Exam Schedule • Weekly Online Discussion 1pt per post, max 5 points per week. From the Syllabus: "Chemistry Community Weekly Online Discussion (5 pts per week)" From Weekly Online Discussion: "Any course related po...
- Thu Nov 12, 2020 9:46 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Chem 14B Waitlist
- Replies: 6
- Views: 638
Re: Chem 14B Waitlist
Won't be known until Jan.
- Thu Nov 12, 2020 7:37 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Chemistry Community Points [ENDORSED]
- Replies: 4
- Views: 657
Re: Chemistry Community Points [ENDORSED]
Jalyn Davis 3J wrote:I am pretty sure all posts/responses count. I know the original posts need to be in the correct section, but I think it's fine if you reply to posts even if they were not posted in the right board.
Don't respond to posts that are clearly not in correct topic/section. They will not count.
- Thu Nov 12, 2020 7:30 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Chemistry 14B [ENDORSED]
- Replies: 2
- Views: 761
Re: Chemistry 14B [ENDORSED]
Avoid overlapping classes as Chem 14B could have tests during lecture times. Also recorded lectures on campus have not yet been authorized. Because I very much want to do classes that are as close as possible to the 'real thing' it involves AVS, Bruincast, etc. They all have to agree and be allowed ...
- Mon Nov 09, 2020 10:06 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Midterm 2 Lecture Cut-Off [ENDORSED]
- Replies: 3
- Views: 290
Re: Midterm 2 Lecture Cut-Off [ENDORSED]
BoparaiAdeshsurjit2I wrote:What will be the last lecture that covers material for midterm 2? Is it this Wednesday or Friday?
Make sure you are receiving class email as I sent details Sunday.
- Mon Nov 09, 2020 2:16 pm
- Forum: Bond Lengths & Energies
- Topic: Negative energies? [ENDORSED]
- Replies: 7
- Views: 745
Re: Negative energies? [ENDORSED]
I will go through this in my 3pm discussion section today.
- Mon Nov 09, 2020 2:12 pm
- Forum: Ionic & Covalent Bonds
- Topic: Hydrogen Bonds [ENDORSED]
- Replies: 9
- Views: 531
Re: Hydrogen Bonds [ENDORSED]
Lily, I will go through this in my 3pm discussion section today.
- Sun Nov 08, 2020 6:36 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Midterm 2
- Replies: 3
- Views: 274
Re: Midterm 2
More shorter questions.
- Sun Nov 08, 2020 8:59 am
- Forum: Trends in The Periodic Table
- Topic: Size & Expected Knowledge
- Replies: 5
- Views: 399
Re: Size & Expected Knowledge
Yes
Straight forward to work it out.
Na far left, therefore largest row two element as size decreases from left to right.
Kr is the smallest element in row three as it is at the far right.
Straight forward to work it out.
Na far left, therefore largest row two element as size decreases from left to right.
Kr is the smallest element in row three as it is at the far right.
- Mon Mar 18, 2019 10:45 am
- Forum: Balancing Redox Reactions
- Topic: Triprotic
- Replies: 7
- Views: 3759
Re: Triprotic
test
- Sat Feb 11, 2017 12:51 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Midterm Winter 2017
- Replies: 87
- Views: 21084
Re: Midterm Winter 2017
Part 3 of the Friday Midterm Review.
- Fri Feb 10, 2017 11:28 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Midterm Winter 2017
- Replies: 87
- Views: 21084
Re: Midterm Winter 2017
Part 2 of the Friday Midterm Review.
- Tue Jun 28, 2016 1:17 pm
- Forum: Endorsed Post (click for details)
- Topic: Endorsed Posts (click for details)
- Replies: 0
- Views: 42501
Endorsed Posts (click for details)
Endorsed posts means their content has been checked by a Chemistry Moderator (Chem_Mod) and deemed suitable/correct. “Endorsed” topics are marked by a tag wich is easily visible to all users of the Chemistry Community Website: image1.png Posts that are not endorsed does not mean they are incorrect. ...
- Fri Oct 10, 2014 9:17 am
- Forum: How to Subscribe to a Forum, Subscribe to a Topic, and Bookmark a Topic (click for details)
- Topic: How to Subscribe to a Forum, Subscribe to a Topic, and Bookmark a Topic (click for details)
- Replies: 0
- Views: 42301
How to Subscribe to a Forum, Subscribe to a Topic, and Bookmark a Topic (click for details)
Topics and posts can be bookmarked or subscribed to by navigating to the bottom of a page and clicking the "Bookmark topic" link or the "Subscribe topic" link. https://lavelle.chem.ucla.edu/forum/images/help/subscribe-bookmark.png Bookmarks may be managed in the User Control Pane...
- Tue Apr 29, 2014 1:59 pm
- Forum: Multimedia Attachments (click for details)
- Topic: Multimedia Attachments (click for details)
- Replies: 0
- Views: 48385
Multimedia Attachments (click for details)
To add images, animations, videos, PDFs, etc., to your post: Navigate to the bottom of a new or existing post edit screen. Click the "Upload attachment" tab, located to the right of the "Options" tab. Click the "Choose" button. Select your file to upload. After uploadin...
- Tue Apr 29, 2014 1:57 pm
- Forum: Strikethrough (click for details)
- Topic: Strikethrough (click for details)
- Replies: 0
- Views: 44648
Strikethrough (click for details)
To use Strikethrough:
- Navigate to edit screen of an existing post or create a new post.
While in the text entry box, select the text to strike-through.
Click the "strike" button in the button bar, located to the right of the "Font Color" button.
- Tue Apr 29, 2014 1:56 pm
- Forum: How to make a New Post (submit a question) and use Equation Editor (click for details)
- Topic: How to make a New Post (submit a question) and use Equation Editor (click for details)
- Replies: 0
- Views: 48504
How to make a New Post (submit a question) and use Equation Editor (click for details)
How-To-Make a New Post To make a new post (submit a question) you must be in a specific topic and then New Topic icon shows: New Topic.png Click the New Topic icon. Enter the Subject of your post/new topic. Then type your question. Then click "I agree". Then click "Submit". Your...
- Fri Mar 14, 2014 9:15 am
- Forum: Email Notification (click for details)
- Topic: Email Notification (click for details)
- Replies: 0
- Views: 26289
Email Notification (click for details)
**************************************************************** To subscribe to forums or topics: 1. Navigate to the bottom of the forum or topic of interest. 2. Click the "Subscribe forum" or "Subscribe topic" link. To unsubscribe from a forum or topic: 1. Navigate to the botto...
- Wed Nov 27, 2013 3:16 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Thanksgiving Week
- Replies: 3
- Views: 1217
Re: Thanksgiving Week
All regular office hours and discussion sections this week and next week (week 10).
UCLA closes Wed at 3pm. Anything after 3pm is Thanksgiving long weekend.
UCLA closes Wed at 3pm. Anything after 3pm is Thanksgiving long weekend.
- Sun Nov 24, 2013 9:18 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Chemistry 14B Enrollment
- Replies: 3
- Views: 1554
Re: Chemistry 14B Enrollment
Carolina, Admin will likely increase the class size for all 3 classes to 385 so I would keep a close watch to enroll when this occurs or get on the wait-list. Other than that faculty have little administrative input. Appreciate your interest in my class. By the way students usually prefer taking cla...
- Thu Nov 14, 2013 3:50 pm
- Forum: Naming
- Topic: Naming Coordination Compounds
- Replies: 1
- Views: 750
Re: Naming Coordination Compounds
I have posted it on my class web site titled: Naming Coordination Compounds
This should be a helpful summary for ligand names.
This should be a helpful summary for ligand names.
- Mon Aug 22, 2011 2:08 am
- Forum: Determining Molecular Shape (VSEPR)
- Topic: Can a charged structure be non-polar?
- Replies: 1
- Views: 818
Re: Can a charged structure be non-polar?
Answer: Na+ is not polar yet it is charged and highly water soluble. Charged does not imply Polar. CCl4 is symmetric and non-polar even though it has polar bonds. The same is true of GaCl4-. The negative charge is not located on any one Cl. The negative charge is spread equally on all the Cl and pr...
- Mon Aug 22, 2011 2:02 am
- Forum: Determining Molecular Shape (VSEPR)
- Topic: Can a charged structure be non-polar?
- Replies: 1
- Views: 818
Can a charged structure be non-polar?
Question: I was under the impression that anytime a structure is charged (cation or anion) then it is polar regardless of its VSEPR structure. However, while going through the book problems I noticed that the book claims that if the structure is symmetric then it is nonpolar. An example is GaCl4-, ...
- Thu Jul 28, 2011 4:06 pm
- Forum: Forum Rules and Helpful Hints
- Topic: Forum Rules and Helpful Hints
- Replies: 0
- Views: 47686
Forum Rules and Helpful Hints
All posts must be in English. No bad language. Be polite and help others having difficulty understanding a topic or solving a problem. Read previous Q&A related to the topic of your question, as your question may already be answered. Duplicate questions will be automatically deleted. Questions ...