CHEMISTRY COMMUNITY

fara valdez

How would you make this distinction in all problems?

fara valdez

I am under the impression sig figs for the tests do not take a toll on the grade, what if the correct number of sig figs being used alters our calculations which alters the answer to the problem?

fara valdez

What exactly is your question affiliates with this problem?? Do you need help with it all?

fara valdez

So the picture is confusing, but the atoms on the left are gallium and the ones on the right aren’t technically on the pan, which is why it is asking you how many there would need to be in order to equal the mass of the ones on the left .

fara valdez

Just use conversions as you would grams to moles, except for the whole compound. Once youve reached that step in your conversion, then you isolate carbon in the CO2 conversion and Hydrogen in H2O.

fara valdez

Once you make your conversions, the smaller result is the limiting reagent and the larger one is excess. Subtract excess reagent by the overall excess reagent given

fara valdez

Do you need help with each question?

fara valdez

Normally, always fufill the octet rule.

fara valdez

https://cbc-wb01x.chemistry.ohio-state. ... dorder.htm
maybe this will help?

fara valdez

does that apply to all bonds?

fara valdez

Fluorine has the highest electronegativity.

fara valdez

Im also interested in that question: is it standard that acids with longer bonds are stronger?

fara valdez

I think it relies on which bond is the most electronegative.

fara valdez

I'm not that sure either, but I hope this helps!
https://www.askiitians.com/iit-jee-chem ... character/

fara valdez

Is that for sure? If so, then would it be given?

fara valdez

However, what does it mean "for the extent of the overlap to be maximum?" I'm confused too.

fara valdez

I think it is just the charge of that specific atom.

fara valdez

Maybe you should look at how to determine the charge by the suffix of the words. Also, it helps to look at the periodic table.

fara valdez

You determine it by looking at the most electronegative atom.

fara valdez

This is a bit confusing. How would you exactly know, every time you conduct a lewis structure diagram, which element gives/receives, or when they share?

fara valdez

I'm not exactly sure how to answer your question. I do not think you can have 4 bonds with a single element. If one combines with another, then it is just left at that.
Could you perhaps rephrase it?

fara valdez

What is the most frequent scenario in which this is used?

fara valdez

Are we required to use both? Or are we allowed to choose?

fara valdez

Maybe you can just remember that anions kind of sounds like "anti-ions" which obviously means negative.

fara valdez

Yes, you have to use the number of valence electrons in order to conduct your Lewis dot diagrams.

fara valdez

What is the chance of finding an object that can absorb light at any wavelength of frequency?

fara valdez

You're welcome!

fara valdez

what would the situation be to find the probability low rather than high?

fara valdez

If it is relevant, it will be provided for your calculations.

fara valdez

I also get confused.

fara valdez

What about study guides?

fara valdez

I believe you can also copy and paste.

fara valdez

Dr. Lavelle also mentioned that you should primarily know the order of increasing wavelengths.

fara valdez

More specifically, I mean in terms of knowing which formulas to use for specific problems. What about that?

fara valdez

"Around 1700, Newton concluded that light was a group of particles (corpuscular theory). Around the same time, there were other scholars who thought that light might instead be a wave (wave theory). Light travels in a straight line, and therefore it was only natural for Newton to think of it as...

fara valdez

Does anyone know any easy/fun ways of memorizing the formulas that will be mentioned in test #2?

fara valdez

To my understanding, the test will not cover week 4.

fara valdez

I guess it's the conservation of energy, if the speed changed then this would require an acceleration which would need energy to be put in or taken out of the wave.

fara valdez

g/mol is mass, mole/liter is Molarity. They both are represented as 'M,' however when im doing my practice or hw problems i just write mass as 'mm.'

fara valdez

You should typically have/use an updated and accurate periodic table.

fara valdez

In high school, my chem teacher demonstrated the conversions in more of a chart form, it is easier to keep track of because it appears to be more organized and neat.

fara valdez

As said, volume measures space in an object while density measures amount of matter in that object.

fara valdez

I was also confused. I think that there should have been some sort of elaboration on it, or at least a clear demonstration of it.

fara valdez

You should typically put it in meters, however, it is up to the professor on what he may allow.

fara valdez

This would be very helpful.

fara valdez

Typically, the easiest way to recognize how many significant figures to use is first to know that any non-zero digits and any zero digits in between are significant digits. Leading zero-digits are not significant. Usually in the question, they may already use the amount of sig. figs. in the number, ...

fara valdez

We put the elements in order due to the fact that for empirical and molecular formulas in chemistry, the Hill System is in place. This states that carbon comes first, then hydrogen, and finally the rest of the elements in alphabetical order. Exceptions to this rule are order of elements in ionic com...

fara valdez

Typically, try starting with the smallest group of elements. Also, you can start with one containing oxygen, and if there isn't oxygen, try carbon.

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