Chemistry - October 2006

clear, cloudy, colored, neutral, etc..

2006-10-02 17:49:58 · 2 answers · asked by frickenawesomekoreanandyouknowit 2

When liquid nitrogen is boiled to make gaseous nitrogen, is it endothermic or exothermic process?
In this reaction, is the work done "on" the system or "by the system" or none?

2006-10-02 17:45:54 · 5 answers · asked by Karan S 1

2006-10-02 17:43:03 · 4 answers · asked by Heartofmine 2

i need to "draw" a beaker diagram for HCl,naking soda,ethanol etc....please explain what i have to do?.,i got a sheet with an empty beaker draw on it...
thank you...

2006-10-02 17:23:05 · 2 answers · asked by bogdan i 1

with 9.00 x 10-1 mol of ethyl alcohol CH3CH2OH?

2006-10-02 17:05:46 · 2 answers · asked by jasmine m 1

2006-10-02 16:55:44 · 3 answers · asked by frickenawesomekoreanandyouknowit 2

i'm working on a chemistry lab and this is one of the questions we have to answer, but i'm not sure why you wouldn't take the mass of a hot object.

2006-10-02 16:46:09 · 8 answers · asked by britt 1

2006-10-02 16:43:42 · 4 answers · asked by BMac 3

I know H2O is water, H3O is hydronium, but what is H4O?

Is there an H4O? I have never heard of it....does it exist in chemistry?

2006-10-02 16:40:23 · 2 answers · asked by bearbearbear3sp 1

2006-10-02 15:45:35 · 1 answers · asked by Anonymous

2006-10-02 15:41:20 · 3 answers · asked by BREZZy 1

what does the M mean? mass? mole? molecule? o__o

2006-10-02 15:37:44 · 8 answers · asked by Anonymous

A certain person can see visable light in the range of 420 nm to 690 nm. What is the frequency range of light that this person can see?

2006-10-02 15:02:08 · 2 answers · asked by kittyvamptress 2

2006-10-02 14:39:25 · 1 answers · asked by gogogo 3

2006-10-02 14:38:30 · 1 answers · asked by Anonymous

which is the bigger danger to environment public health nuclear power generation of electricity or combustion of fossil fuel to generate electricity?

2006-10-02 14:18:54 · 2 answers · asked by mo_ski_love16 1

which is the bigger danger to environment public health nuclear power gneeration of electricity or combustion of fossil fuel to generate electricity?

2006-10-02 14:18:27 · 2 answers · asked by mo_ski_love16 1

2006-10-02 14:16:00 · 2 answers · asked by mo_ski_love16 1

like, what happens to the molecular bonds when they are in water?
thanks in advance.

2006-10-02 13:57:45 · 5 answers · asked by gogogo 3

Consider a wavelength with a frequency of 7.5 x 10 to the 14th Hz. a. What is the wavelength of the wave, in nanometers?
b. What is speed of this wave in a vacuum?

2006-10-02 13:56:58 · 3 answers · asked by kittyvamptress 2

Explain the existence of a line spectrum instead of a continuous spectrum in emission as well as why is an emission spectrum of an element called a fingerprint...Please...I'm very grateful to those who help. Thank you. By the way...are there any like good chemistry websites that aren't too verbose?

2006-10-02 13:54:39 · 5 answers · asked by Anonymous

2006-10-02 13:16:49 · 2 answers · asked by Mia16 3

2006-10-02 12:31:43 · 6 answers · asked by micky_vane 1

14 g of Magnesium when heated in air produces 21 g of product. What percent (by weight) of magnesium is present in the product? answer in percent?

PLZ help. i dnt understnad this question.
THANKS!!!!!!!!

2006-10-02 11:36:02 · 2 answers · asked by Anonymous

2006-10-02 11:29:57 · 11 answers · asked by Anonymous

by what factor is the average kinetic energy of Neon changed?

2006-10-02 11:12:03 · 2 answers · asked by Anonymous

2006-10-02 10:54:23 · 6 answers · asked by zak h 1

2006-10-02 10:20:16 · 4 answers · asked by lost 1

A volume of 5.27 mL of mercury is added to a beaker that has a mass of 52.4 g. What is the mass of the beaker with the added mercury?

2006-10-02 10:15:53 · 3 answers · asked by Azena 4

2006-10-02 10:12:37 · 3 answers · asked by Caitlyn B 1