Chemistry - June 2006

Cv, Cp, and the heat consumed when it reacts with water. Please provide site or book. Thanks

2006-06-22 07:17:15 · 4 answers · asked by atanasgagov 2

2006-06-22 06:54:56 · 4 answers · asked by madurai veeran g 1

Pepsoglaphin has something to do with paper-making. Does anyone know what it is, how it's used, various properties? Is it toxic, or a pollutant?

Thanks

2006-06-22 06:45:58 · 5 answers · asked by JeffyB 7

using the periodic table

2006-06-22 06:39:50 · 6 answers · asked by Xae 6

1, 2, 3, 4?

2006-06-22 06:35:39 · 6 answers · asked by mrkittypong 5

H and F, Na and Cl, Fr and F, or F and F?????

2006-06-22 06:24:35 · 6 answers · asked by mrkittypong 5

+/- ions, + ions and bonding pairs of electrons, - ions and + nuclei, or + nuclei and bonding pairs of electrons?

2006-06-22 05:56:30 · 3 answers · asked by mrkittypong 5

Pure covalent or polar covalent?

2006-06-22 05:21:51 · 5 answers · asked by mrkittypong 5

2006-06-22 05:19:27 · 6 answers · asked by mrkittypong 5

SiO2 have lower b.p. and m.p. (2980,1610) than the MgO (3600,2852) and Al2O3 (2980,2027). Why?
since sio2 is in macromolecular lattice structure, it should have higher lattice energy than the ionic compound...
my lecturer explain to me that the sio2 is amorphous solid...
is it correct?

and another qusetion
can an insulator conduct electricity under high current or high voltage?

2006-06-22 04:52:20 · 4 answers · asked by Anonymous

Then Density of 68% HNO3 is 1.41 g/ml. (I'm missing something!! Thanks!!

2006-06-22 04:51:13 · 1 answers · asked by merlin 1

I always ponder over this question, might be a person who is good with chemistry can answer this well.

Which is the most inflamable gas?
Ans: Hydrogen (H)

Which is the best combustion supporter?
Ans: Oxygen

Chemical formula of Water is H2O, ie. Water is made up of Hydrogen and Oxygen. But still Water is used as a fire extinguiser and does not get ignited. Can some one clear me with this question?

2006-06-22 04:47:42 · 15 answers · asked by koolbvr 2

im trying to work out the % crystallinity using differential scanning calorimetry. so i need the standard heat of HDPE.

2006-06-22 04:22:59 · 3 answers · asked by tony 1

2006-06-22 03:57:45 · 4 answers · asked by ivar 1

what is the best way to undertand stoichiometry?on what branch of chemistry should we be good at to start stoichiometric solving ?

2006-06-22 03:53:43 · 5 answers · asked by Anonymous

i just want to know on what basis did moeller make his diagram and how come there is no 2d or 1p or 3f orbital?

2006-06-22 03:39:22 · 4 answers · asked by Anonymous

i know that a p-orbital has a dumbell shape and is categorised into
Px, Py, Pz orientations. If an electron is having the configuration of np1, does it revolve around x or y or z orientation?and lets say it rotates at some specific orientation. If the shape of p-orbital is dumbell shaped,that means, theres a common point in the centre (of the dumbell) which is the nucleus which implies the electron travels THROUGH the nucleus. How is it possible?

2006-06-22 03:35:41 · 2 answers · asked by Anonymous

2006-06-22 03:08:13 · 4 answers · asked by Anonymous

2006-06-22 02:50:43 · 10 answers · asked by Anonymous

as i explained in question, i am unable to oxidise the fish oil which is generally used for human consumption, so it had deoxidants to protect from atm oxyzen,

2006-06-22 02:47:06 · 1 answers · asked by apparao 1

like NaOH being soluble and Copper (II) oxide being insoluble?

2006-06-22 02:38:45 · 8 answers · asked by Anonymous

IT IS SOME TYPE OF CHEMICAL OR PROCESS USED IN WATER TREATMENT

2006-06-22 02:35:16 · 1 answers · asked by Anonymous

IT IS SOME TYPE OF CHEMICAL USED IN WATER TREATMENT

2006-06-22 02:34:28 · 3 answers · asked by Anonymous

IT IS SOME TYPE OF CHEMICAL USED IN WATER TREATMENT

2006-06-22 02:33:19 · 4 answers · asked by Anonymous

2006-06-22 02:29:23 · 6 answers · asked by James Marvin G 1

I was reading an article about the negative effects that mining has on the environment, and it was mentioned that the waste waters often had negative ph! How is this possible?

Ten points to the first correct answer! Please put it in layman's terms for me...I'm an accounting clerk, not a chemist ;)

2006-06-22 01:42:39 · 10 answers · asked by soulestada 4

its my homework..anyone willing to help me..please!!!..i would very much appreciate it..please help me!!!!

2006-06-22 01:17:35 · 3 answers · asked by raiza 2

2006-06-22 01:06:10 · 3 answers · asked by Postal Dude 3

a) The sum of the masses of all substances involved.
b) The number of molecules of all substances involved.
c) The number of atoms of each type involved.
d) Both (a) and (c) must be the same.
e) Each of the answers (a), (b), and (c) must be the same.

2006-06-22 01:04:31 · 4 answers · asked by karim b 1

2006-06-22 00:40:03 · 9 answers · asked by caroline c 1