CHEMISTRY COMMUNITY

Erika Sosa-Cruz 1J

It depends on what the question is asking ( wording) however, I would think for the final he would want us to convert it to Joules.

Erika Sosa-Cruz 1J

Just like the examples above, you would just need to compare the strength of the acids and bases to determine if the salt is neutral.

Erika Sosa-Cruz 1J

E=hv can only be used for photons.

Erika Sosa-Cruz 1J

I think since it's going to be multiple choice you shouldn't really worry about this however, I agree and say just use five.

Erika Sosa-Cruz 1J

Yes I think I will forget some of the material to; however, what I am going to try to do is review the test books and maybe re do some of the textbooks problems throughout the break.

Erika Sosa-Cruz 1J

I think we could just look at the bond length.

Erika Sosa-Cruz 1J

Depending on what it reacts with it can be either or.

Erika Sosa-Cruz 1J

I plan on having photoshoots with my cousin without feeling guilty.

Erika Sosa-Cruz 1J

Yes you should know the bond angles for the final

Erika Sosa-Cruz 1J

The arrows point to the atoms that have the highest electronegativity. From there we can determine if the are non polar or polar based on the direction that the arrows are in.

Erika Sosa-Cruz 1J

Arya Adibi 1L wrote:If you look at the lewis structure, there are two possibilities of how many sites the ligand can bind at:

1. The two single bonded oxygens can bind to an atom (bidentate)
2. The double bounded oxygen can bind to an atom (monodentate

Thank you !! I was have a difficult chance understanding this.

Erika Sosa-Cruz 1J

I don't think he'll ask us that question on this final but we should just understand that it could either be a square planner or tetrahederal.

Erika Sosa-Cruz 1J

Yeah I would say email your TA as soon as possible to review them before the final

Erika Sosa-Cruz 1J

From what I know Friday's lecture he will be reviewing instead of introducing new material.

Erika Sosa-Cruz 1J

I would recommend for you to memorize all of them just in case.

Erika Sosa-Cruz 1J

Only for coordinate compounds you would name the metal at the end.

Erika Sosa-Cruz 1J

Thank you so much !!

Erika Sosa-Cruz 1J

I would say to be on the safe side for you to memorize them just in case.

Erika Sosa-Cruz 1J

Both are correct, but I'd say you should use OH2

Erika Sosa-Cruz 1J

There is no relationship between frequency and amplitude.

Erika Sosa-Cruz 1J

At certain times it does not allow me to watch the lectures as well, but I reload my page and after a few minutes it lets me view it; however, I do believe that it is a CCLE problem.

Erika Sosa-Cruz 1J

I agree with Brandon, I believe he will give us the names on the final.

Erika Sosa-Cruz 1J

Which concepts where you wondering about exactly ?

Erika Sosa-Cruz 1J

What do you guys think I should do to better prepare myself?

Erika Sosa-Cruz 1J

I believe it will be the same time as the first midterm sadley.

Erika Sosa-Cruz 1J

Hydrogen bonds are attractive to D,o, and N therefore h-h bond will not a hydrogen bond.

Erika Sosa-Cruz 1J

I was wondering about the how NA+ reacts

Erika Sosa-Cruz 1J

It will be during week 7.

Erika Sosa-Cruz 1J

I think the issue might be in the accuracy of your answer. I just plugged it in and got 12373 as an answer. maybe this answer would work? Thank you so much! I plugged this answer in and got it right. I think my calculator wasn't accurate enough and that was the issue but thanks again! Can someone h...

Erika Sosa-Cruz 1J

How many sig figs should I round two ?

Erika Sosa-Cruz 1J

I'm in the same boat any guidance would truly be helpful.

Erika Sosa-Cruz 1J

I am unsure; however, I hope we get an answer from Dr.Lavelle in tomorrow's lecture.

Erika Sosa-Cruz 1J

Happy Halloween, I just stayed home and watched some scary movies !!

Erika Sosa-Cruz 1J

How many photons with a wavelength of 751 nm are needed to melt 417 g of ice? The enthalpy of fusion of water can be found in this table.
I'm having trouble with this question my answer was 5.25* 10^-13.

Erika Sosa-Cruz 1J

I would recommend to try to finish your hw before your mid terms however, if that's not possible just make sure to review the material that the hw was given on.

Erika Sosa-Cruz 1J

You will be able to use your phone as a webcam as long as your able to show your work space.

Erika Sosa-Cruz 1J

So would it be useful to only do the odd number on so that we can check our answer instead of doing all of them and not knowing whether or not we are solving them correctly.

Erika Sosa-Cruz 1J

I think you could go for a walk, drive, or just enjoy some time outside and disconnect from devices maybe just listening to music and exploring your thoughts will help you relax.

Erika Sosa-Cruz 1J

I don't know if this will help at all but I know that Dr.Lavelle emailed us a couple days ago some outlines (1&2 ) which I think is basically what he wants use to know in order to be prepare to take the midterm.

Erika Sosa-Cruz 1J

Yes the best thing to do would be to multiply the coefficients by two because we want whole numbers, and to answer your second question it will in fact preserve the ratio.

Erika Sosa-Cruz 1J

Eric Tam 2D wrote:Do we have to scan any work done on scratch paper?

My Ta said that we do not have to turn in or scan our scratch paper that the only thing that will be graded is the online exam (the multiple questions).

Erika Sosa-Cruz 1J

Hi,
I would recommend taking the pre-module quizzes because I am assuming that that is how he will for the midterm questions or at least something similarly. Also when trying to study, take breaks in between so that you don't overstress yourself and are able to understand the concepts.

Erika Sosa-Cruz 1J

Hi I don't think we have to since we only have 50 minutes to complete the entire test and also because we have multiple choice answer and won't need to scan or summit our work.

Erika Sosa-Cruz 1J

Would light be considered a Quantum Mechanic because we could physically see the light. Or would it be a Classical Mechanic because of the energy that is giving of the light ?

Erika Sosa-Cruz 1J

I think although we don't necessary get a grade for the discussions. I do feel like they are mandatory because if I am not mistaken it is a requirement for the course.

Erika Sosa-Cruz 1J

To answer your question, yes any time there is a combustion 02 is always present as a reactant.

Erika Sosa-Cruz 1J

I would give my final answer in liters since it is the most common unit even if the data given is milliliters always convert it at the end unless they specifically specify to give the answer in milliliters.

Erika Sosa-Cruz 1J

While participating in this workshop problems of writing the following in scientific notation were given and for some I would get different answers as the UA initially; however, essentially the were the same answer (For example 0.13592 UA answer: 1.3592* 10^-1 My answer: 13.592* 10^-2). I was wonder...

Erika Sosa-Cruz 1J

Hello,

I was wondering if anyone was having trouble with their book orders as well, I don't want to contact them if they are just back up. Please let me know if you guys are having the same problems.

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