Search found 105 matches
- Mon Mar 15, 2021 12:51 pm
- Forum: *Cyclopropanes and Cyclobutanes
- Topic: Steric Strain
- Replies: 3
- Views: 2359
Re: Steric Strain
The main difference between steric strain and torsional strain is that steric strain cannot be lessened by rotating the molecule around a bond whereas torsional strain can be lessened by rotating the molecule around a bond.
- Mon Mar 15, 2021 12:42 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Final
- Replies: 3
- Views: 691
Re: Final
Hope your final went great!
- Mon Mar 15, 2021 12:40 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Posts
- Replies: 7
- Views: 916
Re: Posts
The deadline is March 16, Tuesday morning 9am
- Mon Mar 15, 2021 12:39 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Becoming a UA Process
- Replies: 2
- Views: 699
Re: Becoming a UA Process
I believe you can sign your email up at the end of the class evaluations and they will be in contact with you
- Mon Mar 15, 2021 12:27 pm
- Forum: Administrative Questions and Class Announcements
- Topic: [TA Review] Kinetics-Wilberth
- Replies: 3
- Views: 741
Re: [TA Review] Kinetics-Wilberth
A little bit late but thanks for making this available
- Mon Mar 15, 2021 12:27 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Saying Thank You to Dr. Lavelle
- Replies: 490
- Views: 559337
Re: Saying Thank You to Dr. Lavelle
I just wanna say THANK YOU DR. LAVELLE. You made online learning not so bad and were always prepared. This is probably the most I have learnt in a chemistry class and to that I say THANK YOU!
- Mon Mar 15, 2021 12:25 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Missed Chem Community Points
- Replies: 13
- Views: 1227
Re: Missed Chem Community Points
Yeah like a lot of people have stated I believe this depends on how lenient your TA is
- Mon Mar 15, 2021 12:24 pm
- Forum: Administrative Questions and Class Announcements
- Topic: CHEM COMMUNITY SCORES
- Replies: 16
- Views: 1392
Re: CHEM COMMUNITY SCORES
Yeah I believe but I'm not sure you can email your TA to conform
- Mon Mar 15, 2021 12:22 pm
- Forum: Student Social/Study Group
- Topic: Spring Break
- Replies: 4
- Views: 649
Spring Break
Hope everyone enjoys their break and takes this time to relax. It was fun learning with all of you.
- Mon Mar 15, 2021 12:20 pm
- Forum: Student Social/Study Group
- Topic: Culinary Chemistry
- Replies: 239
- Views: 36327
Re: Culinary Chemistry
Does anyone have any good tips for preventing rice from getting stuck to the bottom of the pot? Usually, I would recommend getting a nonstick pot Where is an amazon link where you can get one cheap: https://www.amazon.com/Utopia-Kitchen-Quart-Nonstick-Saucepan/dp/B06Y5KZCB2/ref=sr_1_6?dchild=1&...
- Mon Mar 15, 2021 12:08 pm
- Forum: Student Social/Study Group
- Topic: Culinary Chemistry
- Replies: 239
- Views: 36327
Re: Culinary Chemistry
I think this is cool and reminds me of an article I read once that talks about how even slicing an apple sets off chemical reactions that change the color of the apple's flesh. I think it's very interesting how chemistry directly relates to cooking and they are a lot of other scenarios.
- Sun Mar 14, 2021 12:16 am
- Forum: Phase Changes & Related Calculations
- Topic: state properties
- Replies: 13
- Views: 829
Re: state properties
Because heat represents the transfer of energy to or from a system as a result of temperature
- Sun Mar 14, 2021 12:07 am
- Forum: Phase Changes & Related Calculations
- Topic: Enthalpy vs heat
- Replies: 31
- Views: 2601
Re: Enthalpy vs heat
Heat is the transfer of energy due to a temperature difference while enthalpy is the change in the amount of heat in a system at constant pressure
- Sun Mar 14, 2021 12:03 am
- Forum: Phase Changes & Related Calculations
- Topic: Vapor vs gas
- Replies: 121
- Views: 11828
Re: Vapor vs gas
They are basically the same thing but vapor is the chemical way of saying something is in gas phase
- Sun Mar 14, 2021 12:02 am
- Forum: Phase Changes & Related Calculations
- Topic: oxidation number change
- Replies: 7
- Views: 644
Re: oxidation number change
The oxidation number is the number assigned to an element in chemical combination
- Sun Mar 14, 2021 12:00 am
- Forum: Phase Changes & Related Calculations
- Topic: Finals
- Replies: 4
- Views: 420
Finals
Goodluck on the Final Everybody!!!
- Sat Mar 13, 2021 11:58 pm
- Forum: Van't Hoff Equation
- Topic: Entropy
- Replies: 18
- Views: 1005
Re: Entropy
You can use the van't hoff equation to indirectly solve for the enthaply of a reaction
- Sat Mar 13, 2021 11:56 pm
- Forum: Van't Hoff Equation
- Topic: Outline 4 van't Hoff bullet point
- Replies: 6
- Views: 553
Re: Outline 4 van't Hoff bullet point
Add the Van't hoff equation to your equation sheet
- Sat Mar 13, 2021 11:55 pm
- Forum: Van't Hoff Equation
- Topic: Real Life applications
- Replies: 4
- Views: 482
Re: Real Life applications
The equilibrium relationship can be seen in Hemogolobin-oxygen and also in moods rings and color changing nail polish
- Sat Mar 13, 2021 11:51 pm
- Forum: Van't Hoff Equation
- Topic: When to use
- Replies: 15
- Views: 1061
Re: When to use
The Van't Hoff equation is usually used to explore the changes in state function of a thermodynamic system
- Sat Mar 13, 2021 11:49 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Final Distribution
- Replies: 5
- Views: 434
Re: Final Distribution
I think there will be equal distriubtion from each section like last quarter
- Sat Mar 13, 2021 11:48 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Chem 30A
- Replies: 3
- Views: 316
Re: Chem 30A
Chem 14B Works!
- Sat Mar 13, 2021 11:45 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Final
- Replies: 48
- Views: 2889
Re: Final
My tip would be to watch a lot of review videos like on youtube or Khan academy
- Sat Mar 13, 2021 11:42 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Constants Sheet
- Replies: 9
- Views: 632
Re: Constants Sheet
I am too sure about this either but I believe it's better to be safe than sorry so ask your TA
- Sat Mar 13, 2021 11:42 pm
- Forum: Administrative Questions and Class Announcements
- Topic: week 10 lectures?
- Replies: 15
- Views: 912
Re: week 10 lectures?
I believe the lectures end on Wednesday and the rest is just review for the final
- Sat Mar 13, 2021 11:41 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Saying Thank You to Dr. Lavelle
- Replies: 490
- Views: 559337
Re: Saying Thank You to Dr. Lavelle
Thank you Dr. Lavelle you are an amazing teacher and I hope I get to be in another one of your classes in the future
- Sat Mar 13, 2021 11:40 pm
- Forum: General Rate Laws
- Topic: Order of a reaction
- Replies: 10
- Views: 701
Re: Order of a reaction
The order of a reaction is usually through experiments and I believe he also talks about in the week 9 lecture
- Sat Mar 13, 2021 11:38 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Advice from a Medical Student - Part II [ENDORSED]
- Replies: 298
- Views: 267789
Re: Advice from a Medical Student - Part II [ENDORSED]
Thank you so much for this advice
- Sat Mar 13, 2021 11:37 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3621878
Re: Post All Chemistry Jokes Here
Q: What is the difference between chemistry and physics jokes
A: Chemistry jokes can be funny periodically but physics jokes have more potential
A: Chemistry jokes can be funny periodically but physics jokes have more potential
- Sat Mar 13, 2021 11:36 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3621878
Re: Post All Chemistry Jokes Here
Q: What is iron man's favorite amusement park ride?
A: The ferrous wheel
A: The ferrous wheel
- Sat Mar 13, 2021 11:35 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3621878
Re: Post All Chemistry Jokes Here
Q: What's a chemist's favorite type of dog?
A: A Laboratory retriever
A: A Laboratory retriever
- Sat Mar 13, 2021 11:34 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3621878
Re: Post All Chemistry Jokes Here
Q: How did the hipster chemist burn his hand?
A: He picked it up before it was cool
A: He picked it up before it was cool
- Sat Mar 13, 2021 11:30 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3621878
Re: Post All Chemistry Jokes Here
Q: Why do chemist find working with ammonia easy
A: Because it's pretty basic stuff
A: Because it's pretty basic stuff
- Sat Mar 13, 2021 11:29 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3621878
Re: Post All Chemistry Jokes Here
Q: If H2O is water and H2O2 is hydrogen peroxide, what is H2O4
A: Drinking, Bathing, and lots of other daily activities
A: Drinking, Bathing, and lots of other daily activities
- Sat Mar 13, 2021 11:27 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3621878
Re: Post All Chemistry Jokes Here
Q: Did you hear the joke about coablt, radon and yttrium
A: Nevermind it's to CoRnY
A: Nevermind it's to CoRnY
- Sat Mar 13, 2021 11:25 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3621878
Re: Post All Chemistry Jokes Here
Q: I tried writing jokes about the periodic table
A: But I realized I wasn't quite in my element
A: But I realized I wasn't quite in my element
- Sat Mar 13, 2021 11:24 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3621878
Re: Post All Chemistry Jokes Here
Q: What should you do if no one laughs at your joke
A: Keep telling them until you get a reaction
A: Keep telling them until you get a reaction
- Sat Mar 13, 2021 11:23 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3621878
Re: Post All Chemistry Jokes Here
Q: What did Michael Jackson say after he inhaled Helium
A: He He
A: He He
- Sat Mar 13, 2021 11:19 pm
- Forum: Student Social/Study Group
- Topic: Chemistry News
- Replies: 135
- Views: 168251
Re: Chemistry News
This is a really interseting article that shows a new enivornmental friendly way scientist are removing chemicals from water
http://www.sci-news.com/othersciences/c ... 08595.html
http://www.sci-news.com/othersciences/c ... 08595.html
- Sat Mar 13, 2021 11:17 pm
- Forum: Student Social/Study Group
- Topic: Chemistry News
- Replies: 135
- Views: 168251
Re: Chemistry News
This is a really interesting article that talks about an underestimated source of pollution in marine microplastic
https://www.sciencedaily.com/releases/2 ... 113319.htm
https://www.sciencedaily.com/releases/2 ... 113319.htm
- Sat Mar 13, 2021 11:16 pm
- Forum: Student Social/Study Group
- Topic: Chemistry News
- Replies: 135
- Views: 168251
Re: Chemistry News
This is a really interesting article talking about scientist are innovating and creating a new material that self-assembles with potential applications in health and electronics
https://chemistry.news/2021-02-17-chemi ... erial.html
https://chemistry.news/2021-02-17-chemi ... erial.html
- Sat Mar 13, 2021 11:13 pm
- Forum: Student Social/Study Group
- Topic: Chemistry News
- Replies: 135
- Views: 168251
Re: Chemistry News
This is an article that talks about how this university team is trying to reduce the number of vaccines that are going to waste
https://www.chemistryworld.com/news/uni ... 48.article
https://www.chemistryworld.com/news/uni ... 48.article
- Sat Mar 13, 2021 11:12 pm
- Forum: Student Social/Study Group
- Topic: Chemistry News
- Replies: 135
- Views: 168251
Re: Chemistry News
This is a really interesting article that talks about how we can fabricate the future with a new environment-friendly method of polymerization
https://www.sciencedaily.com/releases/2 ... 100846.htm
https://www.sciencedaily.com/releases/2 ... 100846.htm
- Sat Mar 13, 2021 11:10 pm
- Forum: Student Social/Study Group
- Topic: Chemistry News
- Replies: 135
- Views: 168251
Re: Chemistry News
This is a really interesting article on how chemist is trying to boost boron utility
https://www.sciencedaily.com/releases/2 ... 142428.htm
https://www.sciencedaily.com/releases/2 ... 142428.htm
- Sat Mar 13, 2021 11:08 pm
- Forum: Student Social/Study Group
- Topic: Chemistry News
- Replies: 135
- Views: 168251
Re: Chemistry News
This is an interesting article that talks about Princeton being fined for violations when exporting controlled pathogens
https://www.chemistryworld.com/news/pri ... 18.article
https://www.chemistryworld.com/news/pri ... 18.article
- Sat Mar 13, 2021 11:06 pm
- Forum: Student Social/Study Group
- Topic: Chemistry News
- Replies: 135
- Views: 168251
Re: Chemistry News
This is a really interesting article that talks about the secret of catalyst that increases fuel cell efficiency
https://www.sciencedaily.com/releases/2 ... 122448.htm
https://www.sciencedaily.com/releases/2 ... 122448.htm
- Sat Mar 13, 2021 11:03 pm
- Forum: Student Social/Study Group
- Topic: Chemistry News
- Replies: 135
- Views: 168251
Re: Chemistry News
This is a really interesting article that talks about how physics camp has been proven for benefits for highschool girls
https://www.sciencedaily.com/releases/2 ... 113157.htm
https://www.sciencedaily.com/releases/2 ... 113157.htm
- Sat Mar 13, 2021 11:02 pm
- Forum: Student Social/Study Group
- Topic: Chemistry News
- Replies: 135
- Views: 168251
Re: Chemistry News
This is a really interesting article that talks about how Ghosts of past pesticide use can haunt organic farms for decades
https://www.sciencedaily.com/releases/2 ... 142622.htm
https://www.sciencedaily.com/releases/2 ... 142622.htm
- Sat Mar 13, 2021 10:58 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Advice from a Medical Student [ENDORSED]
- Replies: 297
- Views: 415598
Re: Advice from a Medical Student [ENDORSED]
Thank you for this advice
- Sat Mar 13, 2021 10:57 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Advice from a Medical Student [ENDORSED]
- Replies: 297
- Views: 415598
Re: Advice from a Medical Student [ENDORSED]
Thank you for the advice
- Sat Mar 13, 2021 10:55 pm
- Forum: Student Social/Study Group
- Topic: Final Jitters
- Replies: 457
- Views: 367686
Re: Final Jitters
What I usually recommend before finals is just to try and calm down don't try to overstudy and just have hope that you have a good recollection of the topics taught in the class
- Sat Mar 13, 2021 10:52 pm
- Forum: Administrative Questions and Class Announcements
- Topic: 14B Enrollment [ENDORSED]
- Replies: 67
- Views: 17238
Re: 14B Enrollment [ENDORSED]
I am very happy that I got into the class
- Sat Mar 13, 2021 10:51 pm
- Forum: Administrative Questions and Class Announcements
- Topic: 14B Enrollment [ENDORSED]
- Replies: 67
- Views: 17238
Re: 14B Enrollment [ENDORSED]
I am very happy that I got into the class
- Wed Dec 16, 2020 9:53 pm
- Forum: Student Social/Study Group
- Topic: Chemistry News
- Replies: 135
- Views: 168251
Re: Chemistry News
This is a really interesting article on how scientist are using chemistry to turn paper into a flexible human-powered keypad
https://www.sciencenewsforstudents.org/ ... red-keypad
https://www.sciencenewsforstudents.org/ ... red-keypad
- Wed Dec 16, 2020 9:49 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Saying Thank You to Dr. Lavelle
- Replies: 490
- Views: 559337
Re: Saying Thank You to Dr. Lavelle
Hi, Dr. Lavelle
I wanted to say thank you for a good quarter of learning great chemistry. Thank you for helping us in anyway could and I can't wait to take 14b with you next quarter.
I wanted to say thank you for a good quarter of learning great chemistry. Thank you for helping us in anyway could and I can't wait to take 14b with you next quarter.
- Wed Dec 16, 2020 9:42 pm
- Forum: Polyprotic Acids & Bases
- Topic: Defintion
- Replies: 39
- Views: 2570
Re: Defintion
Polyprotic bases are bases that can accept at least one H+ ion or proton in acid-base reactions while polyprotic acids are acids that are able to donate more than one H+ proton
- Wed Dec 16, 2020 9:38 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3621878
Re: Post All Chemistry Jokes Here
Q: How did the molecular spy introduce himself?
A: My name is Bond Covalent Bond. VSEPR
A: My name is Bond Covalent Bond. VSEPR
- Wed Dec 16, 2020 9:34 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3621878
Re: Post All Chemistry Jokes Here
Old Chemist never die they just stop reacting
Q: What do you call a tooth in a glass of water?
A: A one molar solution
Q: Why do chemists enjoy working with ammonia?
A: Because it's pretty basic stuff
Q: What do you call a tooth in a glass of water?
A: A one molar solution
Q: Why do chemists enjoy working with ammonia?
A: Because it's pretty basic stuff
- Sun Dec 06, 2020 5:43 pm
- Forum: *Stereochemistry
- Topic: stereochemistry reference
- Replies: 6
- Views: 1010
Re: stereochemistry reference
Stereochemistry deals with the spatial arrangement of atoms and groups in a compound and its relation to the properties of the compound.
- Sun Dec 06, 2020 5:24 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: polar v nonpolar molecules
- Replies: 30
- Views: 2498
Re: polar v nonpolar molecules
Polar molecules occur when there is an electronegativity difference between the bonded atoms. Nonpolar molecules occur when electrons are shared equally between atoms of a diatomic molecule or when polar bonds in a larger molecule cancel each other out
- Sun Dec 06, 2020 5:19 pm
- Forum: Calculating the pH of Salt Solutions
- Topic: pH formula?
- Replies: 69
- Views: 4013
Re: pH formula?
The pH formula is pH = -log10[H+] and [H+] = 10^-pH
- Sun Dec 06, 2020 5:02 pm
- Forum: Trends in The Periodic Table
- Topic: dissociation energy
- Replies: 3
- Views: 389
Re: dissociation energy
I believe as the bond dissociation energy increases the difference in the electronegativities of the bonded atoms increases and as the electronegativity of the atom “losing” the electron increases, the bond dissociation energy increases.
- Sun Dec 06, 2020 4:42 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3621878
Re: Post All Chemistry Jokes Here
Don’t trust atoms, they make up everything Q: Have you heard the one about a chemist who was reading a book about helium? A: He just couldn’t put it down Q: Why do chemists like nitrates so much? A: They’re cheaper than day rates. Q: I asked the guy sitting next to me if he had any Sodium Hypobromit...
- Sun Dec 06, 2020 4:35 pm
- Forum: Student Social/Study Group
- Topic: Chemistry News
- Replies: 135
- Views: 168251
Re: Chemistry News
This is a really interesting article that talks about how scientist breaking the rules of chemistry helped them to unlock a new reaction
https://www.sciencedaily.com/releases/2 ... 124113.htm
https://www.sciencedaily.com/releases/2 ... 124113.htm
- Sun Nov 29, 2020 4:54 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3621878
Re: Post All Chemistry Jokes Here
Q: What should you do if no one laughs at your chemistry jokes?
A: Keep telling them until you get a reaction.
Q: Did you hear the one about cobalt, radon, and yttrium?
A: It was CoRnY.
A: Keep telling them until you get a reaction.
Q: Did you hear the one about cobalt, radon, and yttrium?
A: It was CoRnY.
- Sun Nov 29, 2020 4:49 pm
- Forum: Air Pollution & Acid Rain
- Topic: reactions of acid rain
- Replies: 3
- Views: 1050
Re: reactions of acid rain
When compounds like sulfur dioxide and nitrogen oxides are released into the air and when they mix with water, oxygen, and other chemicals to form acid rain. Acid rain can be reduced by producing energy without fossil fuels. People can use renewable energy resources such as solar and wind power inst...
- Sun Nov 29, 2020 4:49 pm
- Forum: Air Pollution & Acid Rain
- Topic: reactions of acid rain
- Replies: 3
- Views: 1050
Re: reactions of acid rain
When compounds like sulfur dioxide and nitrogen oxides are released into the air and when they mix with water, oxygen, and other chemicals to form acid rain. Acid rain can be reduced by producing energy without fossil fuels. People can use renewable energy resources such as solar and wind power inst...
- Sun Nov 29, 2020 4:42 pm
- Forum: Air Pollution & Acid Rain
- Topic: Formation of Acid Rain
- Replies: 5
- Views: 680
Re: Formation of Acid Rain
Acid rain is caused by a chemical reaction that begins when compounds like sulfur dioxide and nitrogen oxides are released into the air. They can rise very high into the atmosphere, where they mix with water, oxygen, and other chemicals to form acidic pollutants
- Sun Nov 29, 2020 4:39 pm
- Forum: Air Pollution & Acid Rain
- Topic: acid rain
- Replies: 13
- Views: 1275
Re: acid rain
Acid rain is basically acid deposition and it refers to the many ways in which acidity can move from the atmosphere to Earth's surface. he gave some examples of this in class,
- Sun Nov 29, 2020 4:01 pm
- Forum: General Science Questions
- Topic: Grades
- Replies: 30
- Views: 2201
Re: Grades
Either CCLE in theft column towards the bottom or MyUCLA portal under "Classes" then selecting "Exam and Homework Grades". I think the most helpful way to do so is adding up the points you have received and implementing them out of Lavelle's grading rubric so HW (50 pts) Discuss...
- Sun Nov 22, 2020 7:09 pm
- Forum: Lewis Structures
- Topic: Polar and non polar elements
- Replies: 9
- Views: 588
Re: Polar and non polar elements
If an element possesses polar and nonpolar characteristics what is it called?
- Sun Nov 22, 2020 7:09 pm
- Forum: Lewis Structures
- Topic: Polar and non polar elements
- Replies: 9
- Views: 588
Polar and non polar elements
Is it possible for an element to possess polar and nonpolar characteristics?
- Sun Nov 22, 2020 7:04 pm
- Forum: General Science Questions
- Topic: Midterm 2
- Replies: 8
- Views: 607
Re: Midterm 2
Does anyone know when we are going to get our Midterm 2 results? Is it going to be before Thanksgiving or after?
- Sun Nov 22, 2020 7:01 pm
- Forum: General Science Questions
- Topic: Grades
- Replies: 30
- Views: 2201
Re: Grades
Lea Ozdere 1A wrote:On CCLE for each class once you get to your class site, you can scroll all the way down on the left tab and find "Grades." You can also check on myUCLA (Classes > Exam and Homework grades), although I've heard those aren't always updated or accurate.
Thank you! This helps
- Sun Nov 22, 2020 6:59 pm
- Forum: Lewis Structures
- Topic: H2O Lone Pairs
- Replies: 5
- Views: 412
Re: H2O Lone Pairs
It is because they are all negatively charged, they repel each other. They will spread out as far away from each other as they can possibly get. Not that they are no longer in the original s and p orbitals that were present in the oxygen atom. The best theory to help you understand this would be the...
- Sun Nov 22, 2020 6:53 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3621878
Re: Post All Chemistry Jokes Here
Q: Did you hear oxygen went on a date with potassium
A: It went OK
Q: Why can you never trust atoms
A: They make up everything!
Q: Anyone know any jokes about sodium?
A: Na
A: It went OK
Q: Why can you never trust atoms
A: They make up everything!
Q: Anyone know any jokes about sodium?
A: Na
- Sun Nov 15, 2020 11:41 pm
- Forum: Lewis Structures
- Topic: Length of bonds
- Replies: 6
- Views: 381
Re: Length of bonds
I don't think there is really a length by which they differ
- Sun Nov 15, 2020 11:40 pm
- Forum: Lewis Structures
- Topic: Oxidation Number
- Replies: 3
- Views: 282
Re: Oxidation Number
The oxidation number is the difference between the valence electrons in the isolated atom and the valence electrons in the bound atom. The lone pair electrons belong entirely to the atom on which they reside. Shared electrons between identical atoms are shared equally. Shared electrons between diffe...
- Sun Nov 15, 2020 11:17 pm
- Forum: Ionic & Covalent Bonds
- Topic: Ionic radius
- Replies: 18
- Views: 905
Re: Ionic radius
In general, ionic radius decreases with increasing positive charge. As the charge on the ion becomes more positive, there are fewer electrons and the ion has a smaller radius. But you can not predict an ion size based on it's charge
- Sun Nov 15, 2020 10:47 pm
- Forum: Lewis Structures
- Topic: Lewis acids and bases
- Replies: 23
- Views: 857
Re: Lewis acids and bases
A Lewis acid is any substance that can accept a pair of nonbonding electrons. It is an electron-pair acceptor
A Lewis base is any substance that can donate a pair of nonbonding electrons. It is an electron-pair donor. In other words, a lewis acid accepts and a lewis base donates.
A Lewis base is any substance that can donate a pair of nonbonding electrons. It is an electron-pair donor. In other words, a lewis acid accepts and a lewis base donates.
- Sun Nov 15, 2020 10:05 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3621878
Re: Post All Chemistry Jokes Here
Enjoy the Jokes:
What's the dullest element? Bohrium!
Why does a hamburger have less energy than steak? Because it's in the ground state!
What's the dullest element? Bohrium!
Why does a hamburger have less energy than steak? Because it's in the ground state!
- Sun Nov 08, 2020 8:09 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Advice from a Medical Student [ENDORSED]
- Replies: 297
- Views: 415598
Re: Advice from a Medical Student [ENDORSED]
Thank you for this!
- Sun Nov 08, 2020 8:06 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Midterm 2 [ENDORSED]
- Replies: 11
- Views: 723
Re: Midterm 2 [ENDORSED]
When are we taking the second midterm?
- Sun Nov 08, 2020 8:03 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3621878
Re: Post All Chemistry Jokes Here
Q: What is the show cesium and iodine love watching together?
A: CSI
Q: What is the chemical formula for "coffee"?
A: CoFe2
Q: What is the chemical formula for "banana"?
A: BaNa2
A: CSI
Q: What is the chemical formula for "coffee"?
A: CoFe2
Q: What is the chemical formula for "banana"?
A: BaNa2
- Sun Nov 08, 2020 8:00 pm
- Forum: Student Social/Study Group
- Topic: Chemistry News
- Replies: 135
- Views: 168251
Re: Chemistry News
This is a really good article that talks about a material scientist found that bruises like skin
https://phys.org/news/2020-11-material-skin.html
https://phys.org/news/2020-11-material-skin.html
- Sun Nov 08, 2020 7:42 pm
- Forum: Ideal Gases
- Topic: Reading the textbook
- Replies: 262
- Views: 151019
Re: Reading the textbook
For anyone struggling with this, I usually use Khan Academy, whenever I don't feel like reading the textbook and also go to office hours
- Sun Nov 08, 2020 7:37 pm
- Forum: General Science Questions
- Topic: Grades
- Replies: 30
- Views: 2201
Grades
Where can we look at our overall grades in the class?
- Sun Nov 08, 2020 7:32 pm
- Forum: Administrative Questions and Class Announcements
- Topic: How to list Chem_Mod posts
- Replies: 25
- Views: 93556
Re: How to list Chem_Mod posts
Thank you!!!
- Sun Nov 01, 2020 11:49 pm
- Forum: Administrative Questions and Class Announcements
- Topic: How to find my posts
- Replies: 163
- Views: 167679
Re: How to find my posts
What does it mean, if someone question is endorsed?
- Sun Nov 01, 2020 11:48 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Midterm Scores
- Replies: 28
- Views: 1255
Re: Midterm Scores
When do you get our midterm scores back and is there going to be a curve on this midterm
- Sun Nov 01, 2020 11:47 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Tutoring? [ENDORSED]
- Replies: 121
- Views: 266957
Re: Tutoring? [ENDORSED]
If you are in the AAP program you can get a personalized tutor to help you with chemistry
- Sun Nov 01, 2020 11:44 pm
- Forum: Student Social/Study Group
- Topic: Chemistry News
- Replies: 135
- Views: 168251
Re: Chemistry News
This is a very brilliant article that talks about MIT chemistry professor Yogesh Surendranath work with developing novel electrochemical reactions to decarbonize our energy systems.
https://scitechdaily.com/developing-nov ... y-systems/
https://scitechdaily.com/developing-nov ... y-systems/
- Sun Nov 01, 2020 11:41 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Advice from a Medical Student [ENDORSED]
- Replies: 297
- Views: 415598
Re: Advice from a Medical Student [ENDORSED]
Thank you for this advice, this really eases my mind especially after taking the first midterm
- Sun Nov 01, 2020 11:38 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Participation Points [ENDORSED]
- Replies: 62
- Views: 3757
Re: Participation Points [ENDORSED]
I believe you can see your points wherever you can view your grades
- Sun Nov 01, 2020 11:38 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Participation Points [ENDORSED]
- Replies: 62
- Views: 3757
Re: Participation Points [ENDORSED]
I believe you can see your points wherever you can view your grades
- Sun Oct 25, 2020 11:35 pm
- Forum: Student Social/Study Group
- Topic: Chemistry News
- Replies: 135
- Views: 168251
Re: Chemistry News
This article is about Chemists at the University of Bayreuth that developed a new material to separate CO^2 from industrial wastes. I thought it was cool and decided to share it. https://www.chemeurope.com/en/news/1168335/climate-protection-chemists-develop-new-material-for-the-separation-of-co-from...
- Sun Oct 25, 2020 11:31 pm
- Forum: Student Social/Study Group
- Topic: Final Jitters
- Replies: 457
- Views: 367686
Re: Final Jitters
I usually use a stress ball and it really helps calm me down
- Sun Oct 25, 2020 11:26 pm
- Forum: Properties of Light
- Topic: How are you guys studying for the midterm?
- Replies: 19
- Views: 1044
Re: How are you guys studying for the midterm?
Honestly, I have been going through the module videos again and Khan Academy really helps too.
- Sun Oct 25, 2020 11:23 pm
- Forum: General Science Questions
- Topic: Webcams for Midterm
- Replies: 6
- Views: 249
Webcams for Midterm
Can I use my phone as a webcam for the midterm or do I have to buy a new webcam
- Sun Oct 25, 2020 11:21 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Where can I buy a webcam for a reasonable price?
- Replies: 60
- Views: 3815
Re: Where can I buy a webcam for a reasonable price?
https://www.aliexpress.com/item/4001059071433.html?src=google&albch=shopping&acnt=494-037-6276&isdl=y&slnk=&plac=&mtctp=&albbt=Google_7_shopping&aff_platform=google&aff_short_key=UneMJZVf&&albagn=888888&albcp=9765953191&albag=103352390521&trgt=...