Science & Mathematics - 14 October 2007

it is for my investigatory project. term for extracting blood with the use of syringe and its not blood sample. thanks a lot!

2007-10-14 18:29:22 · 5 answers · asked by Anonymous in Medicine

I need to find a place or store that sales potassium or sodium cyanide for mail order.

2007-10-14 18:26:53 · 3 answers · asked by Gene K 1 in Chemistry

2007-10-14 18:25:04 · 8 answers · asked by ? 1 in Astronomy & Space

2007-10-14 18:16:42 · 6 answers · asked by Don 1 in Zoology

2007-10-14 18:14:30 · 5 answers · asked by sexyhooper55 1 in Mathematics

what is the hybridization of Cl in NH4Cl?

2007-10-14 18:11:18 · 1 answers · asked by Anonymous in Chemistry

C02 is 1
methane is quoted at 250-350
a lot of cfc's are quoted much higher

anyone know the multiplier for water vapor. i can not find it anywhere and a source if you can quote one would be appriciated

2007-10-14 18:00:19 · 2 answers · asked by j b 2 in Chemistry

2007-10-14 17:57:27 · 4 answers · asked by Anonymous in Mathematics

Are there any educated, rational people out there who believe they have had a paranormal experience? If so, tell me about it.

2007-10-14 17:53:22 · 16 answers · asked by SPQRCLAUDIUS 2 in Paranormal Phenomena

A machine has an 760g steel shuttle that is pulled along a square steel rail by an elastic cord . The shuttle is released when the elastic cord has 16.0N tension at a 45º angle. What is its initial acceleration?

I would appreciate any help that could be offered. I don't really want an answer, just a push in the right direction.

2007-10-14 17:47:40 · 3 answers · asked by Anonymous in Engineering

the problem is this:

Solve the equation by completing the square(^2=2 squared)

4x^2-12x+1=3 ,the answer that i got is x= plus or minus sqrt11 over 2 +1.5, is that correct?

2007-10-14 17:47:04 · 5 answers · asked by Anonymous in Mathematics

the problem is 1-i over 1+i, the answer i got is one, is that right?(seems too easy thats why im asking)

2007-10-14 17:43:22 · 3 answers · asked by Anonymous in Mathematics

(1/y + 2) / (7/y - 2)

2007-10-14 17:39:07 · 9 answers · asked by Jay-j 2 in Mathematics

2007-10-14 17:36:59 · 4 answers · asked by Mary Cae S 1 in Astronomy & Space

(8) / (b/w - w/b)

2007-10-14 17:36:51 · 4 answers · asked by Jay-j 2 in Mathematics

comparing the small soda bottles to the big one...

2007-10-14 17:29:46 · 6 answers · asked by Anonymous in Mathematics

If the Earth and is moving through space then that would mean we are never in the same "space" twice right? I hope my question is clear enough.

2007-10-14 17:25:44 · 7 answers · asked by Anonymous in Astronomy & Space

please reply back asap

2007-10-14 17:25:18 · 8 answers · asked by Anonymous in Mathematics

does anyone know how to find the centroid of a triangle by drawing the three medians? i think you have to use a compass and protractor or something and i'm not sure how to do it this is due tomorrow and its almost one in the morning and i'm really screwed if i don't get it done

2007-10-14 17:24:09 · 3 answers · asked by matt w 1 in Mathematics

You have to find all the roots. I'm not good in math.

2007-10-14 17:21:02 · 4 answers · asked by Jessica W 1 in Mathematics

= ( I need some more help. I'm going to the school on Monday so I can get a tutor but if someone can please help me in the interim I would greatly appreciate it.

Solve by using the quadratic formula.

2x^2 = x + 6

2007-10-14 17:20:32 · 5 answers · asked by Jane S 1 in Mathematics

Let f(x) = (x^2) - 5x and find the linear approximation L(x) to f at x=6. Solve the equation L(x)=0

2007-10-14 17:19:08 · 1 answers · asked by bradm_127 1 in Mathematics

i need help on this problem, i got an answer, but im not sure if its true, what answer do you get?

Solve the equation by completing the square: ^2=2 squared

3x^2+12x-9=0

2007-10-14 17:18:31 · 6 answers · asked by Hello There 1 in Mathematics

2007-10-14 17:17:40 · 6 answers · asked by cc 2 in Physics

I'm so frustrated with this!! How do I subtract this problem?

5 / 64 - z^2 - 4 / z^2 + 9z + 8

2007-10-14 17:15:33 · 5 answers · asked by DoWHATiDO 3 in Mathematics

What is the net ionic and total ionic eqaution for

CH3COOH (acetic acid) and
NH3


thnx

2007-10-14 17:12:10 · 2 answers · asked by Anonymous in Chemistry

2007-10-14 17:09:24 · 8 answers · asked by cow man 1 in Mathematics

2007-10-14 17:07:10 · 2 answers · asked by Mr Booo 2 in Physics

Please! Homework help!

2007-10-14 17:07:01 · 5 answers · asked by jaay 1 in Astronomy & Space

Hey,

I need help with writing the Ionic and Net Ionic equations for these:

1.)CH4 (g) + O2 (g) -----> CO2 (g) + H2O(l)
2.) Mg(s) + 2HOH(l) -----> H2(g) + Mg(OH)2 (aq)

The main reason why I am not getting these is because I am not sure if the gases break apart into ions when writing the Ionic equation. Ex:

CH4 (g)

Does that break apart into C (+/-4) (g) + 4H (g)

Thanks alot!!!!

2007-10-14 17:06:57 · 1 answers · asked by Ryan 3 in Chemistry