CHEMISTRY COMMUNITY

CenCen

take a look at this one haha!

CenCen

would it be wrong to name this alkene 5-methyl-1,3-cyclopentadiene instead of 5-methylcyclopenta-1,3-diene

CenCen

"Mommaaaaaaa! OOOooooOOO!"

CenCen

If the question for a redox reaction asks you to name which is the reducing agent and which is the oxidizing agent is that different from when another question asks which is being reduced and which is being oxidized?
Thanks. :)

CenCen

happy Sunday all :)

CenCen

What is a catalyst? How does it function?

CenCen

hehe...

CenCen

When solving for a problem that involves using the relation of q_surr=-q_sys does it matter which side we place the negative sign? why? Thanks.

CenCen

here's another for you all. :)

CenCen

what's the difference between extensive and intensive properties and what are some examples?
thanks. :)

CenCen

i was thinking about this a few days ago and found someone had created this! :)

CenCen

where can we post the chem jokes?

CenCen

Yeah I know that. But I mean when will we know the score? Or do we have to wait until that day to see what we got? That's an anxiety builder haha!

CenCen

How soon will we know our score for the final?

CenCen

How can you tell whether you're working on a titration problem with both strong acid and base or a strong acid weak base or strong base weak acid?
For the strong acid strong base, how do you know which one is your titrant. does anyone have any helpful videos?

CenCen

Is CH3COOH a weak acid? How can you tell?

CenCen

The nuclear power industry extracts 6 Li but not 7 Li from natural samples of lithium. As a result, the molar mass of commercial samples of lithium is increasing. The current abundances of the two isotopes are 7.42% and 92.58%, respectively, and the masses of their atoms are 9.988*10^-24 and 1.165*1...

CenCen

So the diagram was necessary for this question? could I still solve this if the diagram were not there? And how?

CenCen

Fundamentals E3: In a nanotechnology lab you might have the capability to manipulate individual atoms. The atoms on the left are gallium atoms (molar mass 70 g/mol), those on the right are atoms of astatine (molar mass 210 g/mol). How many astatine atoms would have to be added to the pan on the righ...

CenCen

How would you name the following compound:

[Co(NH₃)₅Cl]Cl₂

Can you explain the process of finding the oxidation number?

I named it: Pentaamminechloro cobalt (III) dichloride

CenCen

how can i determine the coordination number of a compound?

CenCen

So the oxidation number is the number we would put in parentheses like for example: tetracyanonickelate (II) ?

What would be the coordination number?

CenCen

in fall 2014 quiz 3 preparation question 2 it says to name Na[Co(NH₃)₃Cl₃]

in the solution it says that for Cobalt it's Colbaltate. I just want to know why its not just cobalt.

the solution is: sodium triamminetrichlorocobaltate(II)

CenCen

I think that knowing the shape a molecule takes and how it looks helps visually determine whether the molecule is polar or nonpolar unlike the lewis structure which shows the basic design of what atom is bonding where and how many lone pairs are present. The VSEPR model helps you actually see a bett...

CenCen

It helps understanding why certain molecules take a shape. But something i think of when determining their shape is considering the bonds and lone pairs in relevance to the central atom. I consider the regions of density and go from there. Its a simple process ive noticed. As you progress through re...

CenCen

How can we distinguish whether we should use double bonds or add a pair of electrons when we start building our Lewis structure?

CenCen

What's the deal with transition metals?
How would I go about finding their valence electrons? Would I do the same as I do to any other element outside of transitions?

CenCen

so, i was really confused in after having gone to my lecture and discussion. i just want to know if there's a difference between the two. If so, what is it?

CenCen

So I've been wondering, what's so important about sigfigs? why does it matter how many numbers we leave after the decimal place?

CHEMISTRY COMMUNITY

Search found 29 matches

Re: Chemistry Jokes

Question 1.21 a

Re: Chemistry Jokes

Redox Reactions

Re: Chemistry Jokes

Catalyst

Re: Chemistry Jokes

heat

Re: Chemistry Jokes

Extensive V. Intensive

Re: Chemistry Jokes

Chem Joke

Re: Final score

Final score

distinguishing with working on different titrations

Acids and bases

Fundamental E11

Re: Fundamentals E

Fundamentals E

Naming this compound

Determining Coordination number

Re: Determining Oxidation Numbers

Name of complex compound

Re: VSEPR and Polarity

Re: Determining Molecular shape

Creating Lewis structure.

Valence electrons

Limiting Reactants & Limiting Reagents [ENDORSED]

Re: All students read this sig fig post [ENDORSED]