CHEMISTRY COMMUNITY

Mirian_Garcia_2G

I believe that its not necessary in between names, but it is for in between numbers and names. Lavelle mentioned that the dashes in between names were meant to avoid confusion and promote better understanding of the different parts when teaching the material.

Mirian_Garcia_2G

No snapchat, sorry. Homeboy only receives text messages

Mirian_Garcia_2G

Mirian_Garcia_2G

When you can't find good chemistry jokes... This will have to do

Mirian_Garcia_2G

Mirian_Garcia_2G

Valentine's day is so last month.... but here's a cute one.

Mirian_Garcia_2G

Mirian_Garcia_2G

Mirian_Garcia_2G

Mirian_Garcia_2G

"What did the bartender say when oxygen, hydrogen, sulfur, sodium, and phosphorous walked into his bar? OH SNaP!"

Mirian_Garcia_2G

Mirian_Garcia_2G

Mirian_Garcia_2G

Can someone explain the difference between first, second, and zero order? I'm having trouble understanding exactly what the difference is- how does the concentration and reaction rate differ in each? What's the relationship between the two?

Mirian_Garcia_2G

Lol, very funny. Here's one I came across:

What is a cation afraid of? A dogion.

Mirian_Garcia_2G

Mirian_Garcia_2G

Mirian_Garcia_2G

Mirian_Garcia_2G

Mirian_Garcia_2G

Mirian_Garcia_2G

You use the least number of sig figs found in the numbers in the problem.

Mirian_Garcia_2G

Mirian_Garcia_2G

Entropy is a state function, for it isn't path dependent.

Mirian_Garcia_2G

Mirian_Garcia_2G

Mirian_Garcia_2G

Yes, I believe the review session will still take place, even though there are no classes today.

Mirian_Garcia_2G

Should we contact our 14A TA's in regards to our 14A final or will we be provided with our finals by our current 14B TA's?

Mirian_Garcia_2G

Mirian_Garcia_2G

Mirian_Garcia_2G

I'm also interested! Where would this take place? When? Thank you!

Mirian_Garcia_2G

Mirian_Garcia_2G

Have you heard the one about a chemist who was reading a book about helium?
He just couldn't put it down.

Mirian_Garcia_2G

Mirian_Garcia_2G

Hey Dominique, I found a very helpful video by Khan Academy. I think he does a great job with explaining the principles behind hybridization & hybrid orbitals. Hope it helps! Here's the link: https://www.khanacademy.org/science/chemistry/chemical-bonds/copy-of-covalent-bonds/v/sp3-hybrid-orbital...

Mirian_Garcia_2G

Mirian_Garcia_2G

If it specifically says to follow the octet rule, aim to have a total of 8 electrons. However, the central atom can have more than 8 in some instances.

Mirian_Garcia_2G

Mirian_Garcia_2G

Mirian_Garcia_2G

Mirian_Garcia_2G

While a cation is an ion with a positive charge, an anion has a negative charge. Examples of cations include Sodium (Na+) and Lead (Pb2+). Examples of anions include Nitride (N3-) and Hydride (H-). Try thinking if it this way: cations have more protons than electrons, while anions have more election...

Mirian_Garcia_2G

Hello, so the first thing that should be done is balancing the chemical equation (which you have already done, yay!) Next, you must take the grams of each element given and convert to moles using their molecular mass. You can then use your balanced chemical equation to develop a ratio that will give...

Mirian_Garcia_2G

I believe that the most important thing to remember is that c, the speed of light, is a constant value. Whenever c is used in a formula, always know that its value is 3.00x10^8 m/s. But, yes, 3.00x10^8 m/s is the speed of light in a vacuum.

Mirian_Garcia_2G

So, using the information provided, you can definitely come up with a chemical equation for the rxn. This will allow you to better understand what is occurring within the reaction. The formula for % yield is:

Percent Yield= (Actual Yield/Theoretical Yield)x100%

Mirian_Garcia_2G

I live in Saxon, but I'm also interested. Let's all set up a time and date.

Mirian_Garcia_2G

Dear Joslyn, From the picture you uploaded, I believe the mistake was made due to the fact that you mistaken the percentages given for the grams of each element. For example, Xylitol is 39.43% Carbon. Since the total molar mass of Xylitol is 152.15 g/mol, then you would multiply the given percentage...

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