Search found 31 matches

by Liset Rivera 3A
Sat Dec 08, 2018 6:18 pm
Forum: General Science Questions
Topic: FINAL
Replies: 3
Views: 213

Re: FINAL

I dont think it should be in the midterm. It most likely will be taught next quarter in 14b.
by Liset Rivera 3A
Sat Dec 08, 2018 6:13 pm
Forum: Administrative Questions and Class Announcements
Topic: Final
Replies: 11
Views: 310

Re: Final

The final is said to be fairly similar to the midterms. This includes 8 questions with parts to it.
by Liset Rivera 3A
Sat Dec 08, 2018 6:00 pm
Forum: *Making Buffers & Calculating Buffer pH (Henderson-Hasselbalch Equation)
Topic: Final Exam
Replies: 8
Views: 707

Re: Final Exam

calculating equilibrium shouldn't be on the final. However, you should know the conceptually know and understand it.
by Liset Rivera 3A
Sat Dec 08, 2018 5:57 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: VSEPR
Replies: 4
Views: 116

Re: VSEPR

Yes, it would be linear with angles of180.
by Liset Rivera 3A
Sun Dec 02, 2018 9:27 pm
Forum: Lewis Acids & Bases
Topic: acid names
Replies: 8
Views: 117

Re: acid names

I think we should know some of the strong acids.
by Liset Rivera 3A
Sun Dec 02, 2018 9:25 pm
Forum: Hybridization
Topic: P orbital
Replies: 7
Views: 96

Re: P orbital

If there is one region of electron density then its s, 2 is sp,3 is sp2, 4 is sp3, 5 is dsp3, 6 is d2sp3.
by Liset Rivera 3A
Sun Dec 02, 2018 9:23 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: VSEPR Notation
Replies: 10
Views: 123

Re: VSEPR Notation

I Believe the VSEPR will be on the test when asked to draw the Lewis structure and naming the shape of it.
by Liset Rivera 3A
Sun Nov 25, 2018 10:10 pm
Forum: Electronegativity
Topic: Radius
Replies: 7
Views: 259

Re: Radius

The higher the electronegativity, the smaller the atomic radius. This is due to the electrons being closer to the nucleus, thus causing the atomic radius to be higher.
by Liset Rivera 3A
Sun Nov 25, 2018 10:08 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Naming
Replies: 5
Views: 79

Re: Naming

yes, that'll mean that both the electron arrangement and the molecular shape will be the same.
by Liset Rivera 3A
Sun Nov 25, 2018 10:05 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Test 3
Replies: 38
Views: 641

Re: Test 3

I believe it will be because it was the only thing we have learned after the midterm.
by Liset Rivera 3A
Mon Nov 19, 2018 9:41 am
Forum: Student Social/Study Group
Topic: Turning in Homework (Thanksgiving Break)
Replies: 8
Views: 217

Re: Turning in Homework (Thanksgiving Break)

You should turn in this weeks homework with next weeks homework.
by Liset Rivera 3A
Mon Nov 19, 2018 9:40 am
Forum: Determining Molecular Shape (VSEPR)
Topic: Pi bonds and sigma bonds
Replies: 5
Views: 75

Re: Pi bonds and sigma bonds

Each of the bonds determine the shape that will be used. Based on the number, you have to pick a shape.
by Liset Rivera 3A
Mon Nov 19, 2018 9:37 am
Forum: Sigma & Pi Bonds
Topic: Sigma and Pi Bonds affect on structure
Replies: 4
Views: 108

Re: Sigma and Pi Bonds affect on structure

Sigma and Pi bonds don't affect the structure. However, the lone pairs and amount of bonds do.
by Liset Rivera 3A
Sun Nov 11, 2018 8:22 pm
Forum: Hybridization
Topic: Final Grade
Replies: 4
Views: 112

Re: Final Grade

I don’t believe it’s a curve. However, if you get 50% in the class, you’ll get a C-.
by Liset Rivera 3A
Sun Nov 11, 2018 8:17 pm
Forum: Administrative Questions and Class Announcements
Topic: Midterm [ENDORSED]
Replies: 14
Views: 434

Re: Midterm [ENDORSED]

My TA said that it usually takes a week but given that Monday is a holiday she said maybe a little more than a week.
by Liset Rivera 3A
Sun Nov 11, 2018 8:15 pm
Forum: Dipole Moments
Topic: Hydrogen Bonds
Replies: 20
Views: 252

Re: Hydrogen Bonds

Hydrogen bonds are stronger than dipole dipole force and London forces but weaker than ionic and covalent bonds.
by Liset Rivera 3A
Sun Nov 04, 2018 10:22 pm
Forum: Administrative Questions and Class Announcements
Topic: chem test tmrw
Replies: 6
Views: 190

Re: chem test tmrw

There will be the page with the formulas and the periodic table like in the past tests.
by Liset Rivera 3A
Sun Nov 04, 2018 10:20 pm
Forum: Ionic & Covalent Bonds
Topic: Naming Ionic Compounds
Replies: 5
Views: 80

Re: Naming Ionic Compounds

i don't believe we have to name it for the test.
by Liset Rivera 3A
Sun Nov 04, 2018 10:17 pm
Forum: Formal Charge and Oxidation Numbers
Topic: Formal Charge on Central Atom
Replies: 9
Views: 166

Re: Formal Charge on Central Atom

To make it more stable.
by Liset Rivera 3A
Fri Oct 26, 2018 10:03 am
Forum: Administrative Questions and Class Announcements
Topic: Exam
Replies: 7
Views: 235

Re: Exam

Test 2 includes all of the material covered in week 3 including Friday's new material.
by Liset Rivera 3A
Fri Oct 26, 2018 10:01 am
Forum: Properties of Light
Topic: Test 2
Replies: 7
Views: 249

Re: Test 2

The test covers all of week three, so quantum and the new material we learned Friday.
by Liset Rivera 3A
Wed Oct 24, 2018 11:51 pm
Forum: DeBroglie Equation
Topic: Remembering mass of electrons for tests
Replies: 6
Views: 137

Re: Remembering mass of electrons for tests

No, the mass of the electrons is given in the test along side other equations and constants.
by Liset Rivera 3A
Fri Oct 19, 2018 12:41 pm
Forum: Administrative Questions and Class Announcements
Topic: Test Average
Replies: 4
Views: 165

Re: Test Average

My TA said the average was about 90%.
by Liset Rivera 3A
Fri Oct 19, 2018 12:37 pm
Forum: Wave Functions and s-, p-, d-, f- Orbitals
Topic: Video Modules
Replies: 7
Views: 131

Re: Video Modules

You're just supposed to do the modules that are posted. There aren't any more after those.
by Liset Rivera 3A
Fri Oct 19, 2018 12:35 pm
Forum: Student Social/Study Group
Topic: curve?
Replies: 20
Views: 864

Re: curve?

i don't believe its a curve. He just gives people who earned a 50% in the class a C- and a regular scale for As, and Bs.
by Liset Rivera 3A
Thu Oct 11, 2018 9:57 pm
Forum: Administrative Questions and Class Announcements
Topic: chem test tmrw
Replies: 6
Views: 190

Re: chem test tmrw

The test has a page full of equations and it also has a periodic table to help you out during the test.
by Liset Rivera 3A
Thu Oct 11, 2018 9:44 pm
Forum: Administrative Questions and Class Announcements
Topic: Tutoring? [ENDORSED]
Replies: 39
Views: 38494

Re: Tutoring? [ENDORSED]

You can go to tutoring with AAP. You can enroll to a session on myucla, under peer learning. I believe they are still allowing people to enroll.
by Liset Rivera 3A
Wed Oct 10, 2018 12:00 pm
Forum: Balancing Chemical Reactions
Topic: Where to start [ENDORSED]
Replies: 10
Views: 442

Re: Where to start [ENDORSED]

I usually write down the elements and the amount of atoms.Then I see which one has the fewest amount of atoms and start balancing them.
by Liset Rivera 3A
Thu Oct 04, 2018 1:13 am
Forum: Accuracy, Precision, Mole, Other Definitions
Topic: Isotopes [ENDORSED]
Replies: 12
Views: 366

Re: Isotopes [ENDORSED]

This means that the element does not have the same amount of neutrons in the nucleus but does have the same number of protons. This causes the molar mass of an element to vary because the molar mass depends on the sum of the neutrons (which vary) and the protons.
by Liset Rivera 3A
Thu Oct 04, 2018 1:03 am
Forum: Limiting Reactant Calculations
Topic: Homework Questions [ENDORSED]
Replies: 4
Views: 96

Re: Homework Questions [ENDORSED]

You can do any 7 from the sections he provided on the syllabus. It doesn't have to be one from each section, you can do problems from the same sections.
by Liset Rivera 3A
Mon Oct 01, 2018 8:22 pm
Forum: Balancing Chemical Reactions
Topic: Law of Conservation of Mass [ENDORSED]
Replies: 7
Views: 170

Re: Law of Conservation of Mass [ENDORSED]

The Law of conservation of Mass means that the mass of an equation can not be created or destroyed. Therefore, the mass in the reactants (left side) should be the same as the mass in the products (right side).

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