Chemistry - September 2007

i.e., how much will the volume of the solution differ from 120 mL?

Thanks in advance.

2007-09-10 09:46:24 · 2 answers · asked by Anonymous

its for my chemistry homework, and i dont understand that bit...

thanx again xx

2007-09-10 09:34:17 · 1 answers · asked by -x-lollie-x- 1

Let me know anything you know about this question. Thank you!

2007-09-10 09:33:13 · 1 answers · asked by robert johnson 2

Calculations Using Scientific Notation
Express your answers in scientific notation.
1. (5.11 x 10^2) - (4.2 x 10^2)
how do you get:
(standard notation)STN = 910
(scientific notation)SCN = 9.1 x 10^2
how do you get this^, im really lost!

2007-09-10 09:07:29 · 1 answers · asked by Anonymous

rite what im trting to find out is... as chlorine is in the 7th group in the periodic table it has 7 electrons in its outer shell which means to gain a full outer shell it needs one more electron so does this mean in electrolysis chlorine wouls be attracted to the cathode to gain its extra electron....or have i got that totaly wrong?

2007-09-10 08:57:36 · 1 answers · asked by jono 2

2007-09-10 08:44:32 · 3 answers · asked by sam h 1

2007-09-10 08:38:47 · 2 answers · asked by m g 1

2007-09-10 08:32:43 · 4 answers · asked by Me<3JB 2

Assume the ratio of air/fuel is 14.3 : 1 by volume, normal unleaded fuel for a car, but what is the CO2 in weight. The media quotes CO2 released into atmosphere in (tons), I assume metric. A follow-up is how much volume is 1 lb CO2 at sea level, 72 degrees F?

2007-09-10 05:51:51 · 1 answers · asked by WillCroxton 1

Thanks!

2007-09-10 05:41:34 · 6 answers · asked by Anonymous

2007-09-10 05:17:15 · 3 answers · asked by debbie n 1

Well, when you apply electrolysis, you often add some other substances to lower the melting point of the reactant,

But adding salt to ice can makes ice melts slowly, right?

I wonder why. Could anyone please help me?

2007-09-10 04:58:04 · 3 answers · asked by Anonymous

2007-09-10 04:21:41 · 7 answers · asked by rahul 2

The question states specifically the "nucleus"...is that even possible?

2007-09-10 03:42:59 · 6 answers · asked by touchdowntouchbacksack 2

are there any experiements i can do to test for a difference to identify a metal?

2007-09-10 03:04:53 · 4 answers · asked by AshconLivingston 2

In terms of chemistry, what distinguishes metals from non metals?

2007-09-10 02:02:49 · 4 answers · asked by Carlo D 2

2007-09-10 01:59:54 · 5 answers · asked by jeckree m 1

512 35,615 885,326,251 0.00040 0.01001

2007-09-10 01:31:39 · 2 answers · asked by justyn b 1

2007-09-09 23:45:33 · 1 answers · asked by angelacute_girl 1

0.005 5,050 0.0008 1,000 1,000,000 0.25 0.025 0.0025 500 5,000

2007-09-09 15:56:44 · 4 answers · asked by justyn b 1

2007-09-09 15:50:51 · 6 answers · asked by Rex E 1

What ions are present in an aqueous solution of NaH2PO4?

2007-09-09 15:41:12 · 3 answers · asked by Ombre 1

a) weak nuclear force
b) strong nuclear force
c) electromagnetism
d) gravity
e) Coulomb's law

P.S.

Please do not respond to the question if you are going to leave an answer such as "none of these...." or no answer at all other than your own opinion/remark towards the choice of question.

2007-09-09 15:36:40 · 4 answers · asked by thekrimson 1

Is it a chemical or physical change?

2007-09-09 15:32:58 · 3 answers · asked by besos_baby 2

2007-09-09 15:30:11 · 1 answers · asked by thinmint100 1

1. Describe bichromatic analysis including the principle, arrangment of components and advantages. Extrapolate the principle to multiple-wavelength spectrophotometry. Then list examples of comon interferences that can be corrected using bichromatic analysis.

2. The difference between single beam and double beam spectrophotometry?

thanks everyone...=)

2007-09-09 15:13:16 · 1 answers · asked by Anonymous

i have to do assigment title "polymer in our life".but i don't know what is the best for me.Who have the ideas please help me...

2007-09-09 15:05:58 · 3 answers · asked by nurul 1

Substance A
73 percent oxygen
27 percent carbon

Substance B
57 percent oxygen
43 percent carbon

2007-09-09 13:33:24 · 3 answers · asked by Cuff 1

2007-09-09 12:57:42 · 2 answers · asked by Anonymous

out is "half hydrophillic, half hydrophobic?"

Thanks!

2007-09-09 12:05:52 · 2 answers · asked by ChaChaChingThing 2