Chemistry - August 2007

2007-08-26 09:08:27 · 1 answers · asked by whisper2ya 2

All my life I have heard stories of the King of the Retards. As we all know, retards are divided into 4 classes based on IQ. You have the mild retards (IQ 60-80) You have the moderate retards (IQ 40-60) You have the severe retards... you know the ones with the bike helmets that drool (IQ 20-40) and then you have the rare type of retard... the PROFOUND retard (IQ 0-20). These profound retards are locked away in special insititutions underground to keep the retardation on the surface to a safe level. But, then there is the legendary Retard King... the King of all retards... the source of all retardation... the ground zero of stupidity... It is said this Retard King isnt even humanoid in form... its more just a glowing ball of retardation with an IQ in the negative numbers! How is that possible? A negative IQ?!?!?

Has anyone out there seen this legendary retard king? I have heard stories about him visiting hospitals and smacking new born babies over the head to make them retarded

2007-08-26 08:14:04 · 1 answers · asked by Terisuki Yoshimoto 1

2007-08-26 08:04:55 · 1 answers · asked by Dean R 3

What discoveries did Enrico Fermi make about the atom. Also what discoveries did he make about the neutrino.

2007-08-26 08:00:54 · 1 answers · asked by Adawg 3

I am doing an experiment to create a beautiful woman on the basis of what Charles Darwin said in his Origin of Species (i have it right here):

"all the conditions for the first production of a living organism" could be met "in some warm little pond with all sorts of ammonia and phosphoric salts, light, heat, electricity, etc. present".

i have made a small pond in the yard, have all sorts of salt, have electricity and plenty of light, but where can i get ammonia and what does he mean by etc.?

2007-08-26 08:00:46 · 3 answers · asked by Anonymous

hey can any plz explain me what hybridisation exactely is ??? actually i didnt understand in da chemistry class & got a lil confused lol.....

2007-08-26 07:51:29 · 3 answers · asked by gamer2kool 1

Explain the following: Weigh approximately 5 grams of NaCl to the nearest milligram.

I've got an answer, but I'm just not sure if I answered it right. It just seems to simple to me. How would you answer this?

2007-08-26 06:13:07 · 5 answers · asked by Cole 2

2007-08-26 04:24:24 · 12 answers · asked by Anonymous

2007-08-26 04:19:06 · 5 answers · asked by enchel 1

2007-08-26 04:18:50 · 3 answers · asked by Anonymous

im doing this school project as how my teacher asked me too,your cooperation in helping me is very much appreciated!

cheers~

2007-08-26 03:46:57 · 1 answers · asked by obieealex 1

I have received a few IR spectra of un unkown compound, which is a solid probe.The IRs were taken on both surfaces: glossy and opaque. The peaks of each face of the probe are almost the same for each type of absorbtion, just the amount of energy absorbed is different(for ex.: at 1238cm-1 for one face I have 85%(glossy face) of absorbance and for the other 80%(opaque face)). What could cause this difference of absorbance for the same functional group? The two spectra, often, are overlaped, the shape of the peak is the same, but also I have a difference of 5-10% in absorbance.
Around 2350cm-1 on one spectra I have a weak (double peak) absorbtion and on another spectra I have a peak with the same shape but seen in a mirror; instead to have a peak downward, I have upward.

Please help me....
For more information, I could send you a pdf copy of the spectra.

2007-08-26 03:26:39 · 2 answers · asked by Valentina C. 1

I am told that chemistry has not been reduced to known elementary particle physics. Usually, we would say that the problem is that the equations are too complex. I am curious to know some simple examples of this difficulty. The simpler is the atom or the molecule in the example the better it is. It would also be interesting to know a property of a complex atom or molecule that we have reduced to elementary particle physics, but it is not what I ask, though it is closely related.

My motivation to ask this question is to get a feeling for how much "evidence" we have that it is only a problem in solving the equations. If we have succeeded for *all* observed properties up to some reasonably high level of complexity (in the number of particles/atoms) and it is seems clear that there is nothing special in the next step except the additional particle/atom, then it is good "evidence" that it is just a problem in solving the equations. Otherwise, maybe there is a more fundamental problem.

2007-08-26 03:13:23 · 1 answers · asked by My account has been compromised 2

Can someone help me please?...I don't know how to write a balance equation for:

Sodium thiosulfate pentahydrate + Water =>
( Na2S2O3.5H2O) + (H20) =>

Thank you....

2007-08-26 01:36:00 · 1 answers · asked by Pis 1

2IO3- + 12H+ ---> I2 + 6H2O
2I- ---> I2

I have these two balanced chemical equations, in each of them I need to find which ions or molecules are:

1. being oxidized
2. acting as an oxidizing agent
3. acting as an reducing agent

I already know that the Hydrogen ions are not oxidized or reduced, just not really sure what happens with the other molecules and ions...
thanks

2007-08-25 23:29:30 · 1 answers · asked by Anonymous

please explain how you got the answer. THANKS!

2007-08-25 17:36:14 · 3 answers · asked by Anonymous

Me and my friend are trying to make something, and one of the ingredients is borax, neither of us know what it is.

2007-08-25 16:06:06 · 2 answers · asked by Anonymous

2007-08-25 14:52:08 · 3 answers · asked by sumera 1

2007-08-25 11:57:57 · 1 answers · asked by r_sandrea 1

The simplest form of matter can be called

2007-08-25 11:46:33 · 3 answers · asked by Mike H 2

Ok, heres the questions:
How is the enthalpy of formation of calcium carbonate different from the enthalpy of decomposition of calcium carbonate?

What would the chemical equation for the enthalpy of formation of calcium carbonate be?

and...

What standard conditions are used to get the standard enthalpy of formation for calcium carbonate ?

Help please.... I'm really stuck, thank you.

2007-08-25 11:41:21 · 1 answers · asked by Anonymous

Ok, so I am totally lost on this type of problem as well (I have posted another question involving dimensional analysis).
The question states:

A typical normal loss of water through sweating per day for a human is 4/5dL. What is the volume, in liters, of sweat produced per day?

First, I need to say that I have do not have ANY background in chemistry at all, and I am supposedly taken an 'introductory' course in chemistry. My professor assumes that I know difference between metric and english measurements (and I don't, as none of my high schools touched the subject), so I am already lost, in that respect.

Secondly, I don't even know what dL could stand for? I know the mL is milliliter, cm is centimeter, etc.; but I am completely clueless to dL.
How do I even go about a problem like this? Is this involved in fractions/canceling out of units of measurement or what? I am not asking for a final answer, just a baseline to start out the problem; help me understand the process..

2007-08-25 11:40:41 · 3 answers · asked by Cece 2

What is best for us?

2007-08-25 11:40:20 · 6 answers · asked by someone 5

Is their a website where I can view electron dot structures of various atoms such a lithium, nitrogen, sulpher, etc.?

2007-08-25 09:17:46 · 1 answers · asked by Brian 4

ok well i am trying to make cheap dry ice but i need lots of co2.
or f anyone knows how to make dry ice easy

2007-08-25 08:37:35 · 6 answers · asked by phil p 1

im stuck on this question:

Octane (C8H18) burns in oxygen to produce carbon dioxide gas and water vapour.
(i) Write a balanced chemical equation for this process.
(ii) Calculate the volume of carbon dioxide produced at 25 °C and a pressure of
1.01×105 Pa when 9.85 g of octane is used up in the combustion reaction.
(R = 8.314 J K-1 mol-1; Atomic masses: C = 12.01, H = 1.01, O = 15.99)

i got the balenced equation (C8H18----> 8CO2 +9H2O)
and the second part i was using the formula pV=nRT but it gives you grams of octane and asks for the volume of CO2...im totally confused. can anyone help me?

2007-08-25 08:35:14 · 7 answers · asked by Anonymous

Many homes in rural America are heated by a propane gas, a compound that contains only carbon and hydrogen. Complete combustion of a sample of propane produced 2.641g of carbon dioxide and 1.442g of water as the only products. Find the empirical formula of propane.

2007-08-25 06:54:41 · 2 answers · asked by Andrea 2

I need help understanding and figuring out which digits are considered significant numbers/zeros. Any websites or actual explainations will GREATLY be appreciated!

2007-08-25 06:54:19 · 3 answers · asked by Harley Q. 2

2007-08-25 06:35:57 · 5 answers · asked by dibman2001 1

2007-08-25 06:06:09 · 9 answers · asked by codee 1