CHEMISTRY COMMUNITY

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Did you know that you can cool yourself to -273.15˚C and still be 0K?

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Q: What do you do with a sick chemist?
A: If you can't helium, and you can't curium, then you might as well barium.

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Don't trust atoms, they make up everything.

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Helium walks into a bar,
The bar tender says "We don't serve noble gasses in here."
Helium doesn't react.

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

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Q: What do you call a wheel made of iron?
A: A ferrous wheel.

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Q: What kind of dogs do chemists have?
A: Laboratory Retrievers.

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Q: What element is derived from a Norse [censored]?
A: Thorium.

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Q: Why do chemists enjoy working with ammonia?
A: Because it's pretty basic stuff.

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Q: What do you call a clown who's in jail?
A: A silicon.

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^ Great explanation!

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W=degeneracy=(# of states)^(# of particles)

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Q: What is the show cesium and iodine love watching together?
A: CSI

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My teacher threw Sodium Chloride at me.
That’s a salt!

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You must be a compound of Beryllium and Barium,
because you’re a total BaBe

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What more can this man do! Definitely Oscar worthy LOL

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All topics will be covered on the final. Some functional groups may be on there as well.

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Don't remember anything about that. :(

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^ Yup. Final will be covering all topics.

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Thank you!! :)

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Yep! This week is the last week of classes this quarter. :)

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Q: What do you call a clown who's in jail?
A: A silicon.

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Q: What kind of dogs do chemists have?
A: Laboratory Retrievers

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I believe any necessary values would be given as well.

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Yes, a formula sheet with constants and equations will be provided.
Here's the sheet: https://lavelle.chem.ucla.edu/wp-conten ... ations.pdf

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Q: What do you call a tooth in a glass of water?
A: One molar solution.

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

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Q: If H2O is the formula for water, what is the formula for ice?
A: H2O cubed.

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I believe we really just need to know Ferrate only, although there are those other exceptions.

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Hemoglobin transports O2 in blood.

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Net number of moles would be the total number of moles on the product side minus the total number of moles on the reactant side.

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Yeah, I solved it that way too. I believe that should be the correct way.

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Yes, sp3 hybridized would still be tetrahedral.

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I believe it was just the vsepr shapes that we had to figure out.

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Yes, so if the wavelength is smaller than 10^-15, then it does not have measurable wavelike properties.

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Make sure to not assume that x=0 though!

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Lone pairs do count as one area of electron density. Trigonal planar would be sp2 hybridized. Seesaw would be sp3d hybridized.

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Bond order would equal the number of bonding electrons subtracted by the number of anti-bonding electrons, then divide the difference by two.

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Why is Carbon less electronegative than sulfur? The periodic trend for electronegativity is that it increases going up and to the right, so why would Carbon be less electronegative?

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A neutron walks into a bar. He asks the bartender, "How much for a beer?" The bartender offers him a warm smile and says, "For you, no charge".

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

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Two chemists go into a restaurant.
The first one says "I think I'll have an H2O."
The second one says "I think I'll have an H2O too" -- and he died.

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Did you know that you can cool yourself to -273.15˚C and still be 0K?

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T-shaped has 3 atoms and 2 lone pair electrons around the central atom.
Trigonal pyramidal has 3 atoms and 1 lone pair electron around the central atom.

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Elements in Period 3 and beyond are exceptions to the octet rule!

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What did the thermometer say to the graduated cylinder?
At least I have a degree.

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I think I left Bromine and Boron in the cabinet.
BrB!

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Q: What kind of fish is made out of 2 Sodium atoms?
A: 2NA

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My teacher threw Sodium Chloride at me.
That's a salt!

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I believe the conversion is given on a sheet of constants and equations, which is attached to the tests. Here is the sheet: https://lavelle.chem.ucla.edu/wp-conten ... ations.pdf

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The values 4 and 16 comes from squaring n=2 and n=4, using the Rydberg equation (En=-hR/n^2).

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You can use the frequencies that you found, and were given to you, to match the events. A lower frequency would mean that it will have a weaker radiation, and higher frequencies would mean it is a stronger type of radiation.

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Silver walks up to Gold in a bar and says, "AU, get outta here!"

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