CHEMISTRY COMMUNITY

Yailin Romo 4G

Dr. Lavell, I'd really like to thank you for everything you have done for us in chemistry! We see how much you care about us and want to see us succeed everyday! Personally my favorite parts of the course are when you'd show the fun videos or play music before the weekend your jokes are actually fun...

Yailin Romo 4G

Jokes help us get through rough times haha especially times like these!

Yailin Romo 4G

The catalyst affect the reaction both forward and backwards and it is not used up in the reaction.

Yailin Romo 4G

Why do chemists like nitrates so much?
They're cheaper than day rates.

Yailin Romo 4G

Lavel sent out an email saying we have until Wednesday to post our replies so you can get your chem community grade up!

Yailin Romo 4G

Q is negative in an exothermic reaction.

Yailin Romo 4G

Is this review session going to be live streamed??

Yailin Romo 4G

Temperature is always in Kelvin, not Celsius.

Yailin Romo 4G

The states would remain as all thats changing is the coefficients basically

Yailin Romo 4G

Yes! Take a look at the equation sheet he has on his website to familiarize yourself with it.

Yailin Romo 4G

the tests are usually handed back in discussion unless otherwise announced differently by Dr. Lavell

Yailin Romo 4G

Just take your time and make sure to pay attention to units and conversions as I find those to be where I make small mistakes.

Yailin Romo 4G

the oxidizing agent is one that gets reduced while the reducing agent is the one that gets oxidized.

Yailin Romo 4G

in an acidic solution you use H20 to balance it first followed by H+ ions but in a basic solution you use H20 to balance both sides.

Yailin Romo 4G

I do the hw problems because those are the most similar types of problems that we will see, as well as looking out the outlines.

Yailin Romo 4G

For the reaction to be spontaneous, delta G has to be negative

Yailin Romo 4G

It should be around 10 questions but they might be shorter just because these problems are really long and not much can be finished in the 50 minutes if they were full problems.

Yailin Romo 4G

The UAs workshops are life changing if you are struggling in chem like me! Go to them!!

Yailin Romo 4G

The main difference is that for balancing in a basic solution, OH- ends up being your product and the product in acidic is H+.

Yailin Romo 4G

The anode is where current flows in from outside as well as where the oxidation occurs and the cathode is where current flows out as well as where reduction occurs.

Yailin Romo 4G

It won't be cumulative, it will cover what we weren't tested on the midterm and up until what he does in class.

Yailin Romo 4G

Yes because we didn't get tested on the second page of thermodynamics, it will be on the test.

Yailin Romo 4G

Any problems you did to study for the midterm should be fine for this week.

Yailin Romo 4G

Do the syllabus and study it he usually does hw problems on the tests, midterms, and finals.

Yailin Romo 4G

I don't know if he does curves for midterms and tests but he might do adjustments at the end of the quarter.

Yailin Romo 4G

No there will be no study guides, however his syllabus tells you what you basically should know and therefore study.

Yailin Romo 4G

Test 2 will not be cumulative it will only cover material from after the midterm.

Yailin Romo 4G

could they be emailed them to me as well plz?? email is yailinromo@gmail.com

Yailin Romo 4G

There is no score distribution however they do tell you what the averages were.

Yailin Romo 4G

yes it should be the same one!

Yailin Romo 4G

You should be prepared for the midterm to cover outlines 1-4.

Yailin Romo 4G

Thanks so much I will be attending tomorrow!

Yailin Romo 4G

Thank you for the advice its always nice to know someone that's been through what we are going through and how they were able to navigate through it!

Yailin Romo 4G

I suggest going to the UAs midterm reviews or the ones that are focused on concepts you don't really understand.

Yailin Romo 4G

I think that's fine because that's what I did for hw 3

Yailin Romo 4G

I don't think they count the sig figs as much as long as you get the correct answer I don't see why they wouldn't give full points even if your sig figs were off.

Yailin Romo 4G

The UA's usually give out a practice midterm before!!

Yailin Romo 4G

I believe they do give partial credit thus write down as much as you can even if its wrong you should still be able to get some points if you follow the correct steps.

Yailin Romo 4G

Do hw problems from the thermochemistry section to turn in for week 4!

Yailin Romo 4G

I think the midterm will cover everything we have learned up to it thus know everything from the first test as well.

Yailin Romo 4G

if the reaction is exothermic, then decreasing the temp will shift it to products.

Yailin Romo 4G

I think that you will still be able to pick them up go check soon though.

Yailin Romo 4G

you should post 5 posts a week to be on the safe side but they might just check at the end to see if you've posted 50 times not quite sure.

Yailin Romo 4G

I have test anxiety when it comes to chem, I suggest just breathing and doing problems you are confident on and then moving onto ones that are challenging I find this to be very helpful.

Yailin Romo 4G

test 1 will take place in your week 3 discussion section and it will cover the first two units chemical equilibrium and acids and bases

Yailin Romo 4G

They just check to make sure you've posted 5 times a week to get full credit.

Yailin Romo 4G

yes you can do another 5 questions from the equilibrium section for the hw this week

Yailin Romo 4G

there is no study guide, however the hw is a good idea of what to expect for test questions

Yailin Romo 4G

It will be okay to do the equilibrium hw as he is barely gonna go over acids and bases starting next week, as mentioned in lecture.

Yailin Romo 4G

No, we still have another week, Test 1 will take place in week 3 discussion section.

Yailin Romo 4G

He hasn't specified when the peer learning sessions in young hall will be but the ones in Covel have already begun I believe.

Yailin Romo 4G

We only need to know what Lavel teaches us, in which case so far, PV=nRT.

Yailin Romo 4G

Q will be greater than K when the ratio of products to reactants is bigger.

Yailin Romo 4G

I have never taken chem before and so this class is honestly my hardest class because it is hard for me to learn chem. But ive heard chem 14b shouldn't be as bad since its a continuation. For people who have taken chem before ive heard its a breeze.

Yailin Romo 4G

I will be studying by going over the main concepts of the year and then doing most of the hw problems as these are the best practice there is but also it would be a good idea to attend review sessions.

Yailin Romo 4G

Yes at the test bank center in students activities office there are past finals you just have to return one of your tests to get one.

Yailin Romo 4G

Dr. Lavel will email out the room designations this week for the final.

Yailin Romo 4G

Lyndon mentioned today that this practice final will be in chemistry community under the word marshmallow

Yailin Romo 4G

Yes that is correct, you only need 250 points to pass the class with a C-

Yailin Romo 4G

This happens to me as well, the questions are sometimes a bit confusing to me and I automatically start to panic and get nervous. I try to do the ones I do know and come back to the hard ones after.

Yailin Romo 4G

Because they are not assigned they will most likely not be on the final I wouldn't look at those sections.

Yailin Romo 4G

The answers start on page 442 of the solutions manual.

Yailin Romo 4G

The final review sessions are now loaded on his website, lyndons review session is Friday December 6 at 6:30

Yailin Romo 4G

yes he will be doing the exact same problems for each of his classes

Yailin Romo 4G

You can take it the same time as 14b but it didn't let me enroll in it since a pre-req is having a grade in chem 14a.

Yailin Romo 4G

you have to memorize them, all that will be provided is an equation sheet.

Yailin Romo 4G

The final is cumulative so everything we have learned from the beginning but im guessing a good portion of it will be on stuff we learned after as we have not been tested on it yet.

Yailin Romo 4G

Some people have said 14a is the easiest and it gets worse from there especially when starting organic chemistry but for me 14a has been the hardest because I have never taken chem before.

Yailin Romo 4G

I also have trouble with timing on chem tests but what I try to do is if I am stuck on one I skip it and move onto ones I know I can get points on and then come back and try the ones I don't know at the end.

Yailin Romo 4G

its from 6-8 with lyndon he has the best worksheets.

Yailin Romo 4G

What most people have told me is to learn using the solutions manual and go from there if you cant exactly focus on all the material in the book.

Yailin Romo 4G

test covers material not covered on the midterm and up to Mondays lecture.

Yailin Romo 4G

It's not curved but if you are worried about passing then you only need half the points so 250/500 to pass the class.

Yailin Romo 4G

It's not curved but if you are worried about passing then you only need half the points so 250/500 to pass the class.

Yailin Romo 4G

Yes, the final exam will cover all material starting from the beginning of the quarter.

Yailin Romo 4G

What did one titration say to one another? Let's meet at the endpoint.

Yailin Romo 4G

What is the most important chemistry rule? Never lick the spoon

Yailin Romo 4G

What element is a girls best friend? Carbon

Yailin Romo 4G

What should you do with a dead chemist? Barium!

Yailin Romo 4G

did you hear oxygen went on a date with potassium? it went OK

Yailin Romo 4G

I also would like to know what material exactly will be covered but it should only be material covered after the midterm.

Yailin Romo 4G

Dr. Lavell stated that the midterm grades will be given Wednesday during the class times.

Yailin Romo 4G

it says on the syllabus that to pass the class you only need half the points thus 250 out of the total possible points in the class which is 500

Yailin Romo 4G

test two will be during your discussion section in week 8 which is next week

Yailin Romo 4G

The atomic radius trend is also important, where it increases down a group and decreases across a period.

Yailin Romo 4G

Radicals are compounds with an odd number of electrons.

Yailin Romo 4G

All material up to focus 2d is fair game on the final.

Yailin Romo 4G

The goal is to get the atoms in their most stable state, thus the goal is to get the formal charges of the atoms as close to 0 as possible.

Yailin Romo 4G

The midterm covers all material up to focus 2d, thus this includes the high school review materials as well.

Yailin Romo 4G

I'm not quite sure if there is a value that we use to determine bond strength I think just remembering that as the number of bonds increase, so does its strength so the strongest bonds are triple bonds>double bonds>single bond with single bonds being the weakest.

Yailin Romo 4G

An easy way to remember the difference between a cation and a anion is how anion has an "n" in it I relate that to its negative charge and then the cation is positive from that inference. This happens from anions gaining elections making them more negative, and cations losing electrons mak...

Yailin Romo 4G

Thank you for this helpful summary of periodic trends, what I would add to that table is which elements (metals, nonmetals) differ with their affinity and how their ionization energy differs as well.

Yailin Romo 4G

I find it most helpful when I Read the textbook because it has detailed explanations of how to carry out out the problems along with examples, steps, and answers. Yes, it is overwhelming at time but what I try to do is learn or read one section per day so I dont stress about having to read and learn...

Yailin Romo 4G

Test 2 will be administered during your discussion section in week 8, it will also be 50 minutes long.

Yailin Romo 4G

The units for hertz is one cycle per second.

Yailin Romo 4G

I would ask your ta I dont think it should matter if they don't specifically ask for the answer to be in scientific notation.

Yailin Romo 4G

It might not make that big of a difference and my ta has stressed again and again that as long as your answer is close enough to the actual answer it shouldn't be counted as wrong.

Yailin Romo 4G

Thank you so much for this, I am currently a second year pre med student and am stressed OUT about doing well in classes, becoming involved to get into a good medical school.

Yailin Romo 4G

What I do is to do the assigned hw problems ahead of time, that way when he is going over how to do them in class I already know what is going on and take notes on things I might have had trouble doing in the homework.

Yailin Romo 4G

The optimist sees the glass half full.
The pessimist sees the glass half empty.
The chemist sees the glass completely full, half in the liquid state, and half in the vapor state.

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