CHEMISTRY COMMUNITY

Kaitlin_Reeves_1C

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

Kaitlin_Reeves_1C

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

Kaitlin_Reeves_1C

Did you hear about the industrialist who had a huge chloroform spill at his factory? His business went insolvent.

Kaitlin_Reeves_1C

Organic chemistry is difficult. Those who study it have alkynes of trouble.

Kaitlin_Reeves_1C

Q: Why did the noble gas cry?
A: Because all his friends Argon

Kaitlin_Reeves_1C

What did the thermometer say to the graduated cylinder?
"You may have graduated, but I have many degrees."

Kaitlin_Reeves_1C

Q: What did the scientist say when he found 2 isotopes of helium?
A: HeHe

Kaitlin_Reeves_1C

Two men walk into a bar.
One man orders H20.
The other says, "I'll have H20 too."

The second man dies.

Kaitlin_Reeves_1C

What am I doing with element 83?
A: None of your Bismuth.

Kaitlin_Reeves_1C

For part C of #67 in the chapter 8 textbook problems, we are asked to calculate the enthalpy of formation for benzene (C6H6) without resonance. For part D, we are asked to calculate the enthalpy of formation for benzene with resonance. How do I factor resonance into the calculations?

Kaitlin_Reeves_1C

I'm still kind of confused on what the textbook means when it says, "The reaction enthalpy is less negative than the reaction internal energy for reactions that generate gases." Why would it always be less negative?

Kaitlin_Reeves_1C

Q: Did you hear about the chemist who was reading a book about Helium?
A: He just couldn't put it down.

Kaitlin_Reeves_1C

If the Silver Surfer and Iron Man team up, they’d be alloys.

Kaitlin_Reeves_1C

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

Kaitlin_Reeves_1C

I asked the guy sitting next to me if he had any Sodium Hypobromite…
He said NaBrO

Kaitlin_Reeves_1C

Q: Why does hamburger yield lower energy than steak?
A: Because it's in the ground state.

Kaitlin_Reeves_1C

I don’t think ClO2 + would be trigonal pyramidal because it has 3 electron pairs about its central atom, 2 of which are bonded with oxygens and one is a lone pair. This would give it a bent shape. For a molecule to be trigonal pyramidal, I think it would have to have 4 pairs of electrons about the c...

Kaitlin_Reeves_1C

For the electron configurations in the table, the s orbital is listed after the d orbital. Even if an atom, Cobalt for example, doesn’t have a full d orbital but has a full s orbital, would Cobalt use the electrons in the s orbital (since they are on the outside) to bond even though the orbital full...

Kaitlin_Reeves_1C

OMG
Did you hear that oxygen and magnesium are a couple?

Kaitlin_Reeves_1C

Q:What is a cation afraid of?
A: A dogion!

Kaitlin_Reeves_1C

Q: What did Avogadro teach his students in math class?
A: Moletiplication

Kaitlin_Reeves_1C

Is there a standard number of sig figs we are supposed to have for certain kinds of problems? Or does the number of sig figs in an answer vary with each individual problem?

CHEMISTRY COMMUNITY

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Calculating enthalpy of formation with resonance

Reaction Enthalpy and Reaction Internal Energy

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Re: VESPR

Re: What are considered thhe e- in the outer shell?

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Chemistry Joke

Re: Sig Figs Throughout Problems