Search found 61 matches

by Brenda Silva 1B
Fri Jan 15, 2021 6:06 pm
Forum: Ideal Gases
Topic: Does temperature matter?
Replies: 19
Views: 68

Re: Does temperature matter?

In the case of your question, I believe temperature does not necessarily matter but in future questions, the temperature would need to be taken into consideration. Whether temperature matters would depend on the question.
by Brenda Silva 1B
Fri Jan 15, 2021 6:02 pm
Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
Topic: Gas
Replies: 16
Views: 67

Re: Gas

The question should mention the units that are being used whether it be bar or atm, but Dr.Lavelle did mention that for this class we would be using atm and bar interchangeably although they are not necessarily equal.
by Brenda Silva 1B
Fri Jan 15, 2021 5:59 pm
Forum: Administrative Questions and Class Announcements
Topic: acids and bases on the midterm
Replies: 6
Views: 33

Re: acids and bases on the midterm

I believe that we would be tested on the content of acids and bases learned in 14B but the content does build on what we learned in 14A so we would just need to have an overall general idea of what was covered in 14A.
by Brenda Silva 1B
Fri Jan 15, 2021 5:57 pm
Forum: Non-Equilibrium Conditions & The Reaction Quotient
Topic: H2O as a Gas
Replies: 53
Views: 372

Re: H2O as a Gas

We would need to include H2O in the ICE table if it is a gas but would not be included if it's in a liquid state.
by Brenda Silva 1B
Fri Jan 15, 2021 5:55 pm
Forum: Ideal Gases
Topic: PV=nRT
Replies: 70
Views: 422

Re: PV=nRT

P=pressure, V=volume, n=number of moles, R= gas constant, and T= temperature
by Brenda Silva 1B
Sat Jan 09, 2021 9:35 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: K vs. Q
Replies: 53
Views: 157

Re: K vs. Q

Yes, Q and K are both the ratio of [products]/ [reactants] and the only difference is that K is used when equilibrium has been reached and Q is used anytime the reaction is occurring.
by Brenda Silva 1B
Sat Jan 09, 2021 9:26 pm
Forum: Ideal Gases
Topic: Units of Temperature
Replies: 82
Views: 278

Re: Units of Temperature

We would need to write the temperature in Kelvin, therefore when we are given the temperature in Celsius we would have to convert it to Kelvin by adding 273.15 to the temperature.
by Brenda Silva 1B
Sat Jan 09, 2021 9:22 pm
Forum: Administrative Questions and Class Announcements
Topic: Midterm: Question points
Replies: 9
Views: 62

Re: Midterm: Question points

The syllabus does not mention much how many points each question on the exams would be worth but as the previous posts say, the questions may be worth fewer points than the exams taken in 14A.
by Brenda Silva 1B
Sat Jan 09, 2021 9:20 pm
Forum: Student Social/Study Group
Topic: New Year Resolutions?
Replies: 51
Views: 158

Re: New Year Resolutions?

I want to improve my time-management skills, to have more time for self-care, and not feel behind in my classes while taking some time off for myself.
by Brenda Silva 1B
Sat Jan 09, 2021 9:16 pm
Forum: Student Social/Study Group
Topic: Study Habits
Replies: 91
Views: 231

Re: Study Habits

I tend to review the concepts we learned each week by completing random textbook problems that we were assigned that week. Completing the textbook problems is helpful as I can see what topics I need to spend more time studying. I also find the UA and step-up sessions extremely helpful because I have...
by Brenda Silva 1B
Fri Dec 11, 2020 1:17 pm
Forum: Student Social/Study Group
Topic: Final
Replies: 18
Views: 107

Re: Final

I believe they would be using the textbook problems to construct the final which is why there is an emphasis on studying by working on the textbook problems. Good luck studying!
by Brenda Silva 1B
Fri Dec 11, 2020 1:14 pm
Forum: Administrative Questions and Class Announcements
Topic: FINAL EXAM QUESTIONS
Replies: 24
Views: 281

Re: FINAL EXAM QUESTIONS

I do not believe all the questions would come from the textbook but a good majority will which is why they are encouraging us to look over the textbook problems when studying. Good luck studying!
by Brenda Silva 1B
Fri Dec 11, 2020 1:12 pm
Forum: Student Social/Study Group
Topic: How are you studying?
Replies: 203
Views: 1266

Re: How are you studying?

I have been watching the lectures on the content I am still having trouble with and going to that section of the textbook to complete the practice problems. The review sessions have also been very helpful as they give you practice problems to work on. Take advantage of all the resources Dr.Lavelle i...
by Brenda Silva 1B
Fri Dec 11, 2020 1:09 pm
Forum: Student Social/Study Group
Topic: PUSH THROUGH!!
Replies: 29
Views: 151

Re: PUSH THROUGH!!

Thank you for this! Good luck to everyone!
by Brenda Silva 1B
Fri Dec 11, 2020 1:08 pm
Forum: Administrative Questions and Class Announcements
Topic: Final Content
Replies: 18
Views: 156

Re: Final Content

The final would be cumulative but there would be more questions on the topics we spent the most time on. It is expected that there would be more questions on the quantum world because we spent multiple days learning about it.
by Brenda Silva 1B
Fri Dec 11, 2020 1:06 pm
Forum: Administrative Questions and Class Announcements
Topic: Are all questions on the final multiple choices?
Replies: 29
Views: 141

Re: Are all questions on the final multiple choices?

The final would be similar to the last two midterms, all questions would be multiple choice.
by Brenda Silva 1B
Fri Dec 11, 2020 1:05 pm
Forum: General Science Questions
Topic: Textbook Questions on the Final
Replies: 11
Views: 91

Re: Textbook Questions on the Final

Most likely the tests would be a similar format to the midterms, therefore some questions would be like the textbook problems.
by Brenda Silva 1B
Fri Dec 04, 2020 10:40 pm
Forum: General Science Questions
Topic: study methods/recs
Replies: 37
Views: 278

Re: study methods/recs

The review sessions and the UA workshops would be helpful for the final. Dr. Lavelle sent an email with times for all the review sessions, step-up sessions, and other resources to help us for the final.
by Brenda Silva 1B
Fri Dec 04, 2020 10:32 pm
Forum: Student Social/Study Group
Topic: How are you?
Replies: 111
Views: 716

Re: How are you?

Now that finals are approaching I feel more stressed and overwhelmed. It is difficult to stay on top of all my classes especially chemistry. Good luck to everyone on the final!
by Brenda Silva 1B
Fri Dec 04, 2020 10:28 pm
Forum: Ionic & Covalent Bonds
Topic: Polar and Nonpolar
Replies: 28
Views: 172

Re: Polar and Nonpolar

The shape of the molecule and the difference in dipoles are also important to figure out whether a molecule is polar or non-polar. If the dipole forces cancel out then the molecule is non-polar.
by Brenda Silva 1B
Fri Dec 04, 2020 10:16 pm
Forum: Student Social/Study Group
Topic: Practice Exam for Final
Replies: 23
Views: 242

Re: Practice Exam for Final

I do not think there are past final exams that we could study but the textbook problems have been helpful for the midterms.
by Brenda Silva 1B
Fri Dec 04, 2020 10:07 pm
Forum: Administrative Questions and Class Announcements
Topic: Final Exam Date
Replies: 21
Views: 210

Re: Final Exam Date

Our final would be on Sunday, December 13th from 11:30 am to 1 pm.
by Brenda Silva 1B
Mon Nov 30, 2020 4:24 pm
Forum: General Science Questions
Topic: midterm 2 answers
Replies: 26
Views: 269

Re: midterm 2 answers

You should email your TA to review the answers to the second midterm. Some TA's would review your answers during their office hours while other TA's prefer if you make an appointment with them.
by Brenda Silva 1B
Mon Nov 30, 2020 4:18 pm
Forum: Student Social/Study Group
Topic: grade worries
Replies: 110
Views: 1160

Re: grade worries

I am worried about my grade but we still have a few weeks to continue studying for the final. Good luck to everyone on their final!
by Brenda Silva 1B
Mon Nov 30, 2020 4:13 pm
Forum: Administrative Questions and Class Announcements
Topic: Finals Week
Replies: 12
Views: 162

Re: Finals Week

Finals week begins after week 10 and there are no classes during finals week but there would still be classes and discussion during week 10. The final for this class would be on Sunday, December 13.
by Brenda Silva 1B
Mon Nov 30, 2020 4:06 pm
Forum: Student Social/Study Group
Topic: Final Exam Study Tips
Replies: 47
Views: 227

Re: Final Exam Study Tips

Doing practice problems from the textbook are very helpful. I tend to focus more of my time on the concepts I do not fully understand and complete the practice problems from there.
by Brenda Silva 1B
Fri Nov 27, 2020 1:20 am
Forum: Student Social/Study Group
Topic: How have your study habits changed?
Replies: 45
Views: 294

Re: How have your study habits changed?

I have spent more time organizing my notes and highlighting the topics I still need to focus more time on. I then tend to look for the topic in the textbook and work over a couple of problems until I have a greater understanding. If I have a difficult time understanding I tend to read over the chapt...
by Brenda Silva 1B
Fri Nov 20, 2020 10:17 pm
Forum: Administrative Questions and Class Announcements
Topic: Chem 14BL
Replies: 5
Views: 56

Re: Chem 14BL

If you are not able to get Chem 14BL during your second pass it is totally fine to take it the following quarter. You do not need to take the class at the same time.
by Brenda Silva 1B
Fri Nov 20, 2020 10:12 pm
Forum: Student Social/Study Group
Topic: Study Tips for Final Exam
Replies: 57
Views: 402

Re: Study Tips for Final Exam

For the final, I would continue to do textbook practice problems as they have been very helpful for the midterms. I would also recommend attending the workshop sessions to get more practice on different problems. Good luck to everyone studying!
by Brenda Silva 1B
Fri Nov 20, 2020 10:07 pm
Forum: Administrative Questions and Class Announcements
Topic: Week 8 Chem 14A Friday Lecture
Replies: 7
Views: 91

Re: Week 8 Chem 14A Friday Lecture

I do not think we would be having a lecture on Friday because our school calendar does say there is no school on the 26th and 27th.
by Brenda Silva 1B
Fri Nov 20, 2020 10:00 pm
Forum: Student Social/Study Group
Topic: Post Midterm Blues
Replies: 71
Views: 602

Re: Post Midterm Blues

This midterm had a few confusing questions but we are all done! Congrats to everyone for finishing!
by Brenda Silva 1B
Fri Nov 20, 2020 9:56 pm
Forum: Student Social/Study Group
Topic: Favorite TV shows
Replies: 176
Views: 836

Re: Favorite TV shows

I would recommend watching Money Heist and Supernatural which are both on Netflix.
by Brenda Silva 1B
Fri Nov 20, 2020 9:53 pm
Forum: Student Social/Study Group
Topic: post midterm 2
Replies: 27
Views: 283

Re: post midterm 2

There was a couple of questions that were tricky but overall I think it went well. Now that I have taken the midterm I am taking time to myself by watching Netflix.
by Brenda Silva 1B
Fri Nov 13, 2020 2:14 pm
Forum: Student Social/Study Group
Topic: Studying From Home
Replies: 91
Views: 468

Re: Studying From Home

Hi! It is easy to get distracted at home and it is difficult to stay focus. What I tend to do is to try and find an isolated location where I would not get distracted by my family. I also take breaks once in a while because it is difficult to stay focus for long periods of time.
by Brenda Silva 1B
Fri Nov 13, 2020 1:59 pm
Forum: Administrative Questions and Class Announcements
Topic: Question for Students about High School Chem
Replies: 25
Views: 122

Re: Question for Students about High School Chem

I took chem my sophomore year in high school and some of the topics I have seen before while others are completely new. I really appreciate how Dr. Lavelle is explaining all concepts as if they were new for everyone.
by Brenda Silva 1B
Fri Nov 13, 2020 1:53 pm
Forum: Student Social/Study Group
Topic: Midterm 2
Replies: 22
Views: 125

Re: Midterm 2

I would be studying from the textbook since it was helpful for the first midterm. In order to get more practice, I would also be studying the sapling questions.
by Brenda Silva 1B
Fri Nov 06, 2020 5:11 pm
Forum: Trends in The Periodic Table
Topic: Bond Length
Replies: 5
Views: 31

Re: Bond Length

Electronegativity does affect bond length because if the electronegativity is high the atoms will be pulling the electrons with more force, moving the electrons closer, leading to a shorter bond length.
by Brenda Silva 1B
Fri Nov 06, 2020 4:57 pm
Forum: Student Social/Study Group
Topic: Final Jitters
Replies: 226
Views: 35945

Re: Final Jitters

Continue to study and just know that you have been studying for it the whole quarter. Take breaks when you need them and do breathing exercises before the exam to go in a bit more calm.
by Brenda Silva 1B
Fri Nov 06, 2020 2:35 pm
Forum: Administrative Questions and Class Announcements
Topic: Midterm Curve?
Replies: 12
Views: 118

Re: Midterm Curve?

I don't think Dr.Lavelle mentioned anything about the midterm being curved because like people said above there were partial points given and the class is based off on points.
by Brenda Silva 1B
Fri Nov 06, 2020 2:32 pm
Forum: SI Units, Unit Conversions
Topic: Modules This Week
Replies: 9
Views: 110

Re: Modules This Week

The modules were very helpful for the first midterm but I don't think Dr. Lavelle would be posting new ones.
by Brenda Silva 1B
Fri Nov 06, 2020 1:35 pm
Forum: Formal Charge and Oxidation Numbers
Topic: What do we use formal charges for?
Replies: 15
Views: 51

Re: What do we use formal charges for?

Formal charge is used to determine the most stable Lewis structure, we want a structure that has zero charge or near zero charge as it is most stable.
by Brenda Silva 1B
Fri Oct 30, 2020 10:10 pm
Forum: Properties of Light
Topic: How to remember what v is in equations
Replies: 46
Views: 258

Re: How to remember what v is in equations

In most cases, the v that is italicized would be the frequency and the normal v would be velocity but it is best to look at the units being used.
by Brenda Silva 1B
Fri Oct 30, 2020 9:57 pm
Forum: *Shrodinger Equation
Topic: New Audio-Visual Modules
Replies: 9
Views: 100

Re: New Audio-Visual Modules

The Audio-Visuals were extremely helpful for the midterm, hopefully Dr. Lavelle does post more.
by Brenda Silva 1B
Thu Oct 29, 2020 6:40 pm
Forum: Student Social/Study Group
Topic: How to relax
Replies: 113
Views: 586

Re: How to relax

I enjoy watching Netflix, listening to music, and baking to relax.
by Brenda Silva 1B
Thu Oct 29, 2020 6:31 pm
Forum: Properties of Light
Topic: Is c always the speed of light?
Replies: 88
Views: 456

Re: Is c always the speed of light?

Based on what we have learned so far, c will be the speed of light constant (2.998x10^8 m/s).
by Brenda Silva 1B
Thu Oct 29, 2020 6:24 pm
Forum: Heisenberg Indeterminacy (Uncertainty) Equation
Topic: position units
Replies: 19
Views: 112

Re: position units

It would be best to convert nm to m because the units for velocity are m/s therefore you would have the same units when solving the problems.
by Brenda Silva 1B
Thu Oct 22, 2020 10:45 pm
Forum: Student Social/Study Group
Topic: How are you studying?
Replies: 203
Views: 1266

Re: How are you studying?

I find the audio visual modules very helpful as they introduce you to the concepts and you have a better understanding when watching the lectures. The post-assessments are also very helpful as they give you and opportunity to put into practice the concepts you just learned. The problems also allow y...
by Brenda Silva 1B
Thu Oct 22, 2020 10:34 pm
Forum: Student Social/Study Group
Topic: Midterm Fundamentals Review Sheet
Replies: 7
Views: 94

Re: Midterm Fundamentals Review Sheet

This is very helpful! Thank you so much!
by Brenda Silva 1B
Thu Oct 22, 2020 10:30 pm
Forum: Molarity, Solutions, Dilutions
Topic: What does mmol stand for?
Replies: 33
Views: 329

Re: What does mmol stand for?

mmol is the abbreviation of millimole, 1mmol= 0.001mol
by Brenda Silva 1B
Thu Oct 22, 2020 10:24 pm
Forum: Properties of Light
Topic: Midterm
Replies: 42
Views: 390

Re: Midterm

The midterm would be closed notes and would be multiple choice. We would be taking it next week during our discussion section.
by Brenda Silva 1B
Thu Oct 22, 2020 10:05 pm
Forum: Wave Functions and s-, p-, d-, f- Orbitals
Topic: Advice for studying
Replies: 92
Views: 2030

Re: Advice for studying

It is helpful to complete some of the textbook problems ahead of time to have an idea about what would be covered in lecture. Also take advantage of the workshops and the modules on the website. The modules and the pre/post-assessments cover the basics of the concept and then you could put your unde...
by Brenda Silva 1B
Fri Oct 16, 2020 12:14 pm
Forum: Einstein Equation
Topic: Equation Sheet
Replies: 15
Views: 132

Re: Equation Sheet

I believe we would be given the equations and constants on the test but it would be safe to have an overall idea of them in case they do not. But most likely they would provide us all the information we would need to solve the problems.
by Brenda Silva 1B
Thu Oct 15, 2020 10:19 pm
Forum: Properties of Electrons
Topic: protons and electrons
Replies: 33
Views: 191

Re: protons and electrons

Protons and neutrons have about the same mass while electrons have a smaller mass. The atomic mass of an element is dependent on the weight of the protons and neutrons because electrons have little to no effect on the mass.
by Brenda Silva 1B
Thu Oct 15, 2020 10:12 pm
Forum: Properties of Light
Topic: work function
Replies: 15
Views: 142

Re: work function

Yes, you should used a scientific or graphing calculator to solve those problems. In order to get an accurate result try putting the entire problem in the calculator and use parenthesis correctly. It is important to place the parenthesis in the correct place, to avoid getting the wrong result.
by Brenda Silva 1B
Wed Oct 14, 2020 1:36 pm
Forum: Bohr Frequency Condition, H-Atom , Atomic Spectroscopy
Topic: Can an electron stay in its excited state? [ENDORSED]
Replies: 18
Views: 119

Re: Can an electron stay in its excited state? [ENDORSED]

Electrons would not stay in their excited state for a long period of time. They would have to return to their ground state.
by Brenda Silva 1B
Wed Oct 14, 2020 1:28 pm
Forum: Einstein Equation
Topic: m vs nm
Replies: 66
Views: 433

Re: m vs nm

When solving for wavelength it would most likely specify what format the answer should be in. If you are not told whether it has to be in meters or nanometers, it should be fine to have your answer in meters.
by Brenda Silva 1B
Thu Oct 08, 2020 10:40 pm
Forum: SI Units, Unit Conversions
Topic: Rounding
Replies: 20
Views: 160

Re: Rounding

When solving a problem with multiple steps, such as a two step problem, try using the exact values throughout your calculations and only round your final answer, this would allow you to have an accurate result.
by Brenda Silva 1B
Thu Oct 08, 2020 10:35 pm
Forum: Balancing Chemical Reactions
Topic: Fractions
Replies: 14
Views: 108

Re: Fractions

In one of the lectures Dr. Lavelle did mention that for stoichiometric coefficients it is best to use whole numbers.
by Brenda Silva 1B
Thu Oct 08, 2020 10:25 pm
Forum: Balancing Chemical Reactions
Topic: Periodic Table
Replies: 50
Views: 482

Re: Periodic Table

Mostly likely the periodic table would be given to us during the test but it would be helpful if you know the most common elements and start reviewing the rest of them.
by Brenda Silva 1B
Thu Oct 08, 2020 10:18 pm
Forum: Empirical & Molecular Formulas
Topic: Empirical and Molecular Formula
Replies: 17
Views: 124

Re: Empirical and Molecular Formula

The molecular formula can be the same as the empirical formula, just keep in mind that the empirical formula is a ratio of the molecular formula therefore it could not be larger than the molecular formula.
by Brenda Silva 1B
Tue Oct 06, 2020 4:56 pm
Forum: Empirical & Molecular Formulas
Topic: Emprical Formulas Ever Larger than Molecular? [ENDORSED]
Replies: 26
Views: 458

Re: Emprical Formulas Ever Larger than Molecular? [ENDORSED]

The empirical formula could not be larger than the molecular formula because the empirical formula is a ratio of the molecular formula. Therefore, it could only be smaller or the same as the molecular formula.

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