Chemistry - March 2007

Im intereted in what would happen if someone was put into suspended animation in a "realistic" portrayal.
every film/book seems to portray it differently.
would you just be in coma? or with frost all over you like in 2001?
i would like to hear your different view points!
its would help my day dreaming about science stuff!

2007-03-13 04:55:49 · 3 answers · asked by olie b 1

2007-03-13 04:46:56 · 1 answers · asked by stargazer 2

2007-03-13 04:42:34 · 2 answers · asked by emulife2001 1

arrange the following in order of increasing bond length
A) N-O
B) N-H
C) N-S

2007-03-13 04:30:27 · 3 answers · asked by socr8711 2

i want to learn about organic chemistry

2007-03-13 04:27:38 · 2 answers · asked by sang 1

In the side label of non-dairy creamer I noticed a acaution. It read as follows:
"Caution: Like many powdered products, this product should not be stored or used near an open flame or high heat source."

What does this mean? Is my non-dairy flammable???? What makes it flammable?

2007-03-13 04:25:35 · 6 answers · asked by Negrita Linda 3

in a constant pressure calorimeter, the temperature drops from 22.0 degrees Celsius to 16.4 degrees. Calculate delta H rxn (in kJ/mol NH4NO3) for the solution process listed below.
* Assume that the specific heat of the solution is the same as that of pure water
* NH4NO3(s) --> NH4+ + NO3-

2007-03-13 04:15:22 · 5 answers · asked by j h 1

what is the molarity of sulphuric acid

2007-03-13 04:07:33 · 1 answers · asked by nazati 2

i mean you need to know sigma and pi bonds from chemistry. molecular orbital theory from chem. then memorize alkanes CnHn+2 stuff like that. 1 h is meth-, 2 H is eth-, 3- prop-, 4- but-. Alkyl is when there is one less hydrogen or phenyl is one less hydrogen to benzene. alcohols. aromatic compounds. chiral(aysmetrical to central atom binding to 4 different atoms). geometric isomer the trans(no dipole) and cis(dipole). chair and boat form. It seems easy to me but is it really easy though like easier than chem?
I know all these from just skimming the a textbook, but is it wise to study organic chem on your own or not?

2007-03-13 03:56:19 · 5 answers · asked by avalentin911 2

CH3OH(g) --> CO(g) + 2H2(g) detla H = +90.7 kJ

a) calculate the amout ofheat transferrred when 55.0 g of CH3OH(g) are decomposed by this reaction at constant pressure...

b) If the enthalpy change is 17.0 kJ, how many grams of hydrogen gas are produced?

2007-03-13 03:43:11 · 1 answers · asked by j h 1

strong acids are good electrolytes whilst weak acids are observed to be weak electrolytes. explain what this means and outline two ways in which you could demonstrate this property in the lab.

2007-03-13 03:19:56 · 2 answers · asked by Anonymous

The question is in relation to herbal medicines having pH of 2.5 to 6. What is the best method to find preservative effectiveness?

2007-03-13 03:04:34 · 1 answers · asked by snoogs73 1

2007-03-13 02:52:25 · 4 answers · asked by hiscageofstars 1

Here is the exact question:An unknown amount of potassium oxalate, K2C2O4, was dissolved in 80.0 ml of 2.0 M sulfuric acid and then titrated with 26.5 ml of 0.0284 M KMnO4. Calculate the amount of K2C2O4 in grams used in the titration.

My plan is to first determine the number of moles in K2C2O4 from K2C2O4 + H2SO4 ?? And then do the other part. Or should I put the whole thing together as in:

K2C2O4 + H2SO4 + KMnO4 --> ????

2007-03-13 02:13:26 · 3 answers · asked by elizabeth_is_a_fiesty_gal 2

of x extracted from a solution containing 10.0g of x 1.00dm^3 of water by (a) 100 cm^3 (b) two sucessive portions of 50.0 cm^3 of ether.

2007-03-13 01:36:36 · 1 answers · asked by tq 3

Provide balanced formulae equations for each of the following observations:

d) calcium carbonate reacts with nitric acid solution - effervescence occurs

e) brown fumes of nitrogen dioxide gas reacts with water - universal indicator turns red

f) iron is 'corroded' by dilute sulfuric acid solution

2007-03-13 01:33:07 · 2 answers · asked by hiscageofstars 1

for NH4^+
use ka = 5.6x10^10

2007-03-13 01:17:28 · 2 answers · asked by tq 3

distances, yet calcium oxide melts at 2973K whereas sodium chloride melts at 1074K

2007-03-13 00:09:04 · 2 answers · asked by jumpy789 1

2007-03-13 00:02:32 · 1 answers · asked by kohlirosy 1

What made them burn or melt metals or things...? please... asap...

2007-03-12 23:41:09 · 6 answers · asked by tomoyo 2

2007-03-12 22:07:42 · 1 answers · asked by Ebun A 1

what is the formula for the reaction between ammonia (NH3) and hydrochloric acid (HCl)

2007-03-12 21:51:55 · 7 answers · asked by Charley 2

Anyone know how I can get a few ounces of Ethyl Ether cheap without having to give up my privacy rights? I need more to help with my butterfly collection.

2007-03-12 21:45:56 · 4 answers · asked by wernerslave 5

2007-03-12 21:29:37 · 6 answers · asked by Appu 1

6. explain the shape of this polyatomic ion; H3O+

2007-03-12 21:12:47 · 1 answers · asked by Anonymous

I know the molecular formula is C3H6N3O9, but I don't know how to figure out the empirical formula.

2007-03-12 21:06:59 · 5 answers · asked by frog 1

2007-03-12 20:58:00 · 2 answers · asked by tigarman84 1

In real chemical system, what factor would control the relative concentrations of reactants and products present at equilibrium?

2007-03-12 20:53:41 · 1 answers · asked by Anonymous

2007-03-12 20:47:53 · 1 answers · asked by Anonymous

2007-03-12 20:32:49 · 4 answers · asked by atashib 1