Search found 57 matches

by Chanel D_4E
Sun Dec 08, 2019 11:58 pm
Forum: General Science Questions
Topic: 50 post grade
Replies: 25
Views: 510

Re: 50 post grade

It probably depends on your TA. I have heard that some TA's just look to see if you have done 50 posts by the end of week 10.
by Chanel D_4E
Sun Dec 08, 2019 11:57 pm
Forum: Naming
Topic: -ate
Replies: 10
Views: 120

Re: -ate

You add -ate to a negatively charged molecule/anions in which you would use their Latin name (ex. Ferrate, Cuprate,etc). You don't need to change anything for a positively charged molecule.
by Chanel D_4E
Sun Dec 08, 2019 11:54 pm
Forum: Student Social/Study Group
Topic: most stable
Replies: 6
Views: 97

Re: most stable

The most stable Lewis Structures are the ones that have a formal charge of 0
by Chanel D_4E
Sun Dec 08, 2019 11:53 pm
Forum: Shape, Structure, Coordination Number, Ligands
Topic: Nitro vs Nitrito
Replies: 6
Views: 103

Re: Nitro vs Nitrito

Nitrito will either be written as ONO or NO2 with the O atom underlined. Nitro will be written as NO2 with N underlined.
by Chanel D_4E
Sun Dec 08, 2019 11:47 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: AXE formula
Replies: 7
Views: 94

Re: AXE formula

A represents the central atom, X represents the number of atoms bonded to the central atom and E represents the number of lone pairs on the central atom.
by Chanel D_4E
Sun Dec 08, 2019 11:44 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: bent v. angular
Replies: 20
Views: 218

Re: bent v. angular

Bent and angular are interchangeable. Whichever term you prefer, you may use.
by Chanel D_4E
Sun Dec 08, 2019 11:42 pm
Forum: Administrative Questions and Class Announcements
Topic: curve
Replies: 8
Views: 128

Re: curve

In the syllabus it states that "Only at the end of the class when the class average score (out of 500 points) is known are final grades assigned. This class does not use a curve."
by Chanel D_4E
Mon Dec 02, 2019 9:29 pm
Forum: Administrative Questions and Class Announcements
Topic: Grades
Replies: 15
Views: 177

Re: Grades

Does anyone know how many points is equivalent to a C, C+, B-, B, B+, and so on?
by Chanel D_4E
Sun Dec 01, 2019 11:45 pm
Forum: Administrative Questions and Class Announcements
Topic: Grades
Replies: 15
Views: 177

Re: Grades

Yes, you need at 250 in order to pass with a C-.
by Chanel D_4E
Sun Dec 01, 2019 11:44 pm
Forum: Student Social/Study Group
Topic: Studying Videos
Replies: 3
Views: 46

Re: Studying Videos

I agree! Organic Chemistry Tutor is very helpful.
by Chanel D_4E
Sun Dec 01, 2019 11:33 pm
Forum: General Science Questions
Topic: Bruincasts
Replies: 9
Views: 161

Re: Bruincasts

Lavelle doesn't bruincast his lectures. Your best bet is rewatching his audio-visual topics on the class website. Or you may read the textbook if you don't understand certain topics.
by Chanel D_4E
Sun Dec 01, 2019 11:30 pm
Forum: General Science Questions
Topic: Friday Lecture Week 10
Replies: 3
Views: 43

Re: Friday Lecture Week 10

Our last lecture will be on Wednesday and Friday will most likely be review.
by Chanel D_4E
Sun Dec 01, 2019 11:19 pm
Forum: Lewis Acids & Bases
Topic: Homework
Replies: 4
Views: 44

Re: Homework

Yes, we turn in homework for week 9 and 10 if you didn't have discussion last week. Or if you had discussion and did not turn in week 9 homework then, you can do so this week.
by Chanel D_4E
Mon Nov 25, 2019 11:59 pm
Forum: Sigma & Pi Bonds
Topic: sigma and pi bonds
Replies: 19
Views: 187

Re: sigma and pi bonds

Single bond = 1 sigma bond
Double Bond = 1 sigma bond, 1 pi bond
Triple Bond = 1 sigma bond, 2 pi bonds
by Chanel D_4E
Mon Nov 25, 2019 11:58 pm
Forum: Student Social/Study Group
Topic: Test 2 and Final
Replies: 18
Views: 185

Re: Test 2 and Final

I'm assuming we will get back test 2 during week 10 discussion and the final is cumulative! I have a feeling there will be more emphasis on the new material that wasn't covered in the midterm.
by Chanel D_4E
Mon Nov 25, 2019 11:45 pm
Forum: Administrative Questions and Class Announcements
Topic: Attach Pictures
Replies: 3
Views: 70

Re: Attach Pictures

You could also drop the picture into the text box itself. It won't show up at first but when you press preview you could see if your picture is there.
by Chanel D_4E
Mon Nov 25, 2019 11:37 pm
Forum: Shape, Structure, Coordination Number, Ligands
Topic: Online Textbook
Replies: 6
Views: 60

Re: Online Textbook

There should be a code that came with the book you purchased. However, if you can't access it and didn't exchange the Sapling access code for a SaplingPlus access code a few weeks ago, I would recommend taking pictures of the physical copy of the book or scan it but that's a bit of work :(
by Chanel D_4E
Mon Nov 25, 2019 11:31 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Seesaw Shape
Replies: 12
Views: 103

Re: Seesaw Shape

It would be easier to just memorize them. The seesaw shape would be <90 and <120 degrees
by Chanel D_4E
Sun Nov 17, 2019 11:00 pm
Forum: Trends in The Periodic Table
Topic: electron affinity
Replies: 7
Views: 87

Re: electron affinity

Electron affinity increases as you goes up a period and across a period (from left to right).
by Chanel D_4E
Sun Nov 17, 2019 10:55 pm
Forum: Student Social/Study Group
Topic: Class Grading
Replies: 44
Views: 1050

Re: Class Grading

Does anyone know how many points a B- would be per se if 250/500 is a C-?
by Chanel D_4E
Sun Nov 17, 2019 10:47 pm
Forum: Student Social/Study Group
Topic: Class Grading
Replies: 44
Views: 1050

Re: Class Grading

I think you only need 250/500 to pass the class with a C-
by Chanel D_4E
Sun Nov 17, 2019 7:59 pm
Forum: *Molecular Orbital Theory (Bond Order, Diamagnetism, Paramagnetism)
Topic: types of bonds
Replies: 14
Views: 341

Re: types of bonds

Yea, exactly!
Single bond = 1 sigma bond
Double Bond = 1 sigma bond, 1 pi bond
Triple Bond = 1 sigma bond, 2 pi bonds
by Chanel D_4E
Sun Nov 17, 2019 5:35 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Do we have to memorize the names of shapes and/or the bond angles?
Replies: 7
Views: 59

Re: Do we have to memorize the names of shapes and/or the bond angles?

I believe that it would be good to memorize the bond angles and molecular shapes for the test.
by Chanel D_4E
Sun Nov 10, 2019 9:45 pm
Forum: Electronegativity
Topic: Periodic Trend
Replies: 13
Views: 109

Re: Periodic Trend

Electronegativity increases up a period and across a period from left to right!
by Chanel D_4E
Sun Nov 10, 2019 9:06 pm
Forum: Student Social/Study Group
Topic: chem 14b + cehm14bl
Replies: 9
Views: 104

Re: chem 14b + cehm14bl

I am also not sure which is best to take together. However, I have met people that say they've taken chem14b and chem 14bl together or they have just taken chem14bl by itself.
by Chanel D_4E
Sun Nov 10, 2019 9:03 pm
Forum: Electronegativity
Topic: memorizing tables
Replies: 9
Views: 64

Re: memorizing tables

I don't believe you need to memorize the electronegativity numbers just the electronegativity trend which increases across and up a period.
by Chanel D_4E
Sun Nov 10, 2019 8:53 pm
Forum: Bond Lengths & Energies
Topic: Week 7 Homework
Replies: 15
Views: 184

Re: Week 7 Homework

I believe you could still turn in homework from the chemicals bonds section for week 7
by Chanel D_4E
Sun Nov 03, 2019 10:46 pm
Forum: Dipole Moments
Topic: Dipole, midterm?
Replies: 7
Views: 103

Re: Dipole, midterm?

From what I can remember I think everything up until the end of last week including dipole moments will be on the midterm. Feel free to correct me because I might have heard wrong :)
by Chanel D_4E
Sun Nov 03, 2019 10:41 pm
Forum: Administrative Questions and Class Announcements
Topic: slides
Replies: 4
Views: 54

Re: slides

Sadly, no :((( I believe it would be very beneficial if he did.
by Chanel D_4E
Sun Nov 03, 2019 10:37 pm
Forum: Administrative Questions and Class Announcements
Topic: Midterms
Replies: 6
Views: 77

Re: Midterms

Yes, thankfully we don't have two midterms! :) Just test 2 and a final.
by Chanel D_4E
Sun Nov 03, 2019 10:35 pm
Forum: Administrative Questions and Class Announcements
Topic: Accessing the E book urgent
Replies: 1
Views: 27

Re: Accessing the E book urgent

I also saw the email and am wondering about this too. However, I can still access the ebook but I haven't switched to sapling plus.
by Chanel D_4E
Sun Nov 03, 2019 10:17 pm
Forum: *Black Body Radiation
Topic: Midterm
Replies: 3
Views: 79

Re: Midterm

I think we don't need to worry about it for the first midterm!
by Chanel D_4E
Sun Oct 27, 2019 7:01 pm
Forum: Administrative Questions and Class Announcements
Topic: Thanksgiving
Replies: 3
Views: 54

Re: Thanksgiving

I believe we do have lecture on Nov. 27 and discussion section as well if you have one on Wednesday.
by Chanel D_4E
Sun Oct 27, 2019 4:40 pm
Forum: Student Social/Study Group
Topic: Study Tips
Replies: 58
Views: 1398

Re: Study Tips

You may also go to the test bank and see what Lavelle's previous tests consisted of so you have a general idea of what our's may possibly look like :)
by Chanel D_4E
Sun Oct 27, 2019 4:36 pm
Forum: Student Social/Study Group
Topic: Miderm Review
Replies: 10
Views: 180

Re: Miderm Review

Did you buy the bundle? I believe if you bought the chemistry bundle in the beginning of the quarter I believe you would be able to access the course. If not, I assume you would have to pay $64 :(
by Chanel D_4E
Sun Oct 27, 2019 4:29 pm
Forum: Properties of Light
Topic: p=mv
Replies: 4
Views: 44

Re: p=mv

Linear momentum is expressed as p=mass*velocity. Thus, the SI units should be kg*m/s
by Chanel D_4E
Sun Oct 27, 2019 2:19 pm
Forum: Student Social/Study Group
Topic: Miderm Review
Replies: 10
Views: 180

Re: Miderm Review

There should be some practice assignments on Sapling Learning, other than that I am not sure of other resources.
by Chanel D_4E
Sun Oct 20, 2019 9:47 pm
Forum: Administrative Questions and Class Announcements
Topic: Posting Image
Replies: 3
Views: 49

Re: Posting Image

Image
by Chanel D_4E
Sun Oct 20, 2019 9:40 pm
Forum: General Science Questions
Topic: Test #1
Replies: 6
Views: 67

Re: Test #1

I believe you meant percent yield.
Percent Yield = (Actual Yield / Theoretical Yield) * 100%
by Chanel D_4E
Sat Oct 19, 2019 11:18 pm
Forum: Quantum Numbers and The H-Atom
Topic: 1D.19
Replies: 6
Views: 66

Re: 1D.19

a) Three orbitals
b) Five orbitals
c) One orbital
d) Seven orbitals

Try to make note of the number of orbitals in each type of subshell...
s: 1 orbital
p: 3 orbitals
d: 5 orbitals
f: 7 orbitals
by Chanel D_4E
Sat Oct 19, 2019 11:07 pm
Forum: Properties of Light
Topic: Homework due Next Week
Replies: 9
Views: 106

Re: Homework due Next Week

Yes! The homework for week 4 still deals with "The Quantum World" section so we would just submit a different set of 5 problems this week.
by Chanel D_4E
Sat Oct 19, 2019 6:43 pm
Forum: Administrative Questions and Class Announcements
Topic: Posting Image
Replies: 3
Views: 49

Re: Posting Image

I believe there are two ways you could do this. First, try to drop/add the image into the text box directly and then hit preview in order to see if the image appears in your post. Or you could look below the submit button, and there should be two tabs labeled "Options" and "Attachment...
by Chanel D_4E
Sat Oct 19, 2019 6:31 pm
Forum: General Science Questions
Topic: Midterm
Replies: 3
Views: 75

Re: Midterm

I believe you could go to TA or Professor Office hours for any questions, comments, or concerns you may have leading up to the midterm. According to the syllabus, there should be many exam review sessions, workshops, peer learning sessions, and step-up sessions every week.
by Chanel D_4E
Sat Oct 12, 2019 11:50 pm
Forum: Empirical & Molecular Formulas
Topic: Nomenclature
Replies: 11
Views: 240

Re: Nomenclature

I agree with the previous person. Maybe in the future we will need to know how to write the molecular formula from it's name and vice versa but I don't think it is something to worry about as of right now.
by Chanel D_4E
Sat Oct 12, 2019 7:48 pm
Forum: DeBroglie Equation
Topic: Chemistry Community Weekly Points
Replies: 3
Views: 31

Re: Chemistry Community Weekly Points

I believe that they are due Sunday before 11:59pm. If anything try to get your 5 posts in before Sunday so you don't have to worry about it! Hope this helps :)
by Chanel D_4E
Sat Oct 12, 2019 7:46 pm
Forum: DeBroglie Equation
Topic: Thanksgiving Week
Replies: 1
Views: 24

Re: Thanksgiving Week

I believe that we'll have class the Wednesday before Thanksgiving because I actually added my classes I think from MyUCLA to my calendar.
by Chanel D_4E
Sat Oct 12, 2019 6:24 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7951
Views: 1171317

Re: Post All Chemistry Jokes Here

Q: What two elements do sheep belt when happy?
A: BaH!!
by Chanel D_4E
Sat Oct 12, 2019 2:13 pm
Forum: Properties of Light
Topic: Textbook numbering
Replies: 2
Views: 32

Re: Textbook numbering

I think for the online version you would need to find the table of contents on the left hand side (underneath the home button) and find the sections that he assigned. For instance look for Focus 1, then you would read Topic 1A Investigating Atoms and all the way at the bottom you would find the home...
by Chanel D_4E
Sat Oct 12, 2019 2:01 pm
Forum: Photoelectric Effect
Topic: Energy in Photoelectric Effect
Replies: 5
Views: 37

Re: Energy in Photoelectric Effect

I think that the threshold energy has to always be greater than or equal to the rest energy in order for the electrons to be emitted.
by Chanel D_4E
Fri Oct 04, 2019 10:54 pm
Forum: Administrative Questions and Class Announcements
Topic: Study Tips/Schedule
Replies: 4
Views: 71

Re: Study Tips/Schedule

I would suggest to view the modules again, look over lecture notes, do more practice problems on the concepts that you don't really understand (although that sounds a bit tedious it could turn out to be beneficial), and maybe look for outside sources if needed. For instance, you could watch videos o...
by Chanel D_4E
Fri Oct 04, 2019 7:41 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7951
Views: 1171317

Re: Post All Chemistry Jokes Here

oxygen+sodium+sodium = O Na Na whats my name...
by Chanel D_4E
Fri Oct 04, 2019 7:36 pm
Forum: Accuracy, Precision, Mole, Other Definitions
Topic: Homework Grading
Replies: 7
Views: 83

Re: Homework Grading

I'm not sure if you will be penalized. However, I think it might be good to write the units throughout the whole problem so that your TA will know how you went from say grams to atoms or whatever the problem asks you to do.
by Chanel D_4E
Fri Oct 04, 2019 7:27 pm
Forum: Accuracy, Precision, Mole, Other Definitions
Topic: Homework Grading
Replies: 7
Views: 83

Re: Homework Grading

I think that if you keep in mind the sig fig rules and how to properly decipher how many sig figs are needed in the final answer, you should be able to come up with the correct number. You could also look at the solutions manual so that you know exactly how much you need to round your answer in the ...
by Chanel D_4E
Fri Oct 04, 2019 7:24 pm
Forum: Empirical & Molecular Formulas
Topic: Chemical Formulas
Replies: 3
Views: 69

Re: Chemical Formulas

I believe so. You would write H20 not OH2 because the element with the positive oxidation number comes first or before the element with the negative oxidation number.
by Chanel D_4E
Tue Oct 01, 2019 10:56 pm
Forum: Molarity, Solutions, Dilutions
Topic: How to do E15
Replies: 4
Views: 61

Re: How to do E15

You are trying to find the molar mass of M so essentially what does M=? 1) The molar mass of (OH)2 is 34.02 g/mol 2)Molar mass of metal (M) = 74.10 g/mol - 34.02 g/mol = 40.08 g*mol^-1 When you look at the periodic table the molar mass matches the element Ca 3) Now find the molar mass of Calcium Sul...
by Chanel D_4E
Tue Oct 01, 2019 8:16 pm
Forum: Accuracy, Precision, Mole, Other Definitions
Topic: How to access e textbook
Replies: 4
Views: 87

Re: How to access e textbook

You should have gotten an email with a link to access sapling learning. From there you need to create a new user ID if you don't have one already and then once you log in you will be able to see the chem course. To access the book look all the way to the right hand side and it should say eTextbook u...

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