Science & Mathematics - 21 October 2007

Also which element is primarily used in standerd flourescent tubes?

2007-10-21 18:29:59 · 2 answers · asked by koko 4 in Chemistry

2007-10-21 18:28:38 · 4 answers · asked by Anonymous in Astronomy & Space

the absolute temperature of the gas at which 3.33 10-3 mol occupies 240. mL at 729 torr

2007-10-21 18:23:57 · 3 answers · asked by Wyatt M 1 in Chemistry

x^2-12x= -36

Step By Step Please.

2007-10-21 18:18:15 · 6 answers · asked by Anonymous in Mathematics

Since you say it's not spirits...it's our brains doing it.
Also, which part has poems, rhymes, songs, information etc. etc ,stored in it? A brain isn't all that big...to store so much, I think.

2007-10-21 18:17:42 · 8 answers · asked by Deenie 6 in Paranormal Phenomena

2007-10-21 18:14:20 · 3 answers · asked by augusto 1 in Mathematics

2007-10-21 18:11:55 · 1 answers · asked by Anonymous in Mathematics

Is there some kind of reaction we can create so oxygen is always being created without us always monitoring it?

Mars seems like the only other planet humans can inhabit. The atmosphere is stable and isn't rough like other planets in our Solar system.

2007-10-21 18:11:25 · 9 answers · asked by Anonymous in Astronomy & Space

2007-10-21 18:08:19 · 3 answers · asked by Anonymous in Mathematics

help find x

2007-10-21 18:06:50 · 6 answers · asked by Anonymous in Mathematics

plxx help

2007-10-21 18:05:35 · 7 answers · asked by Anonymous in Mathematics

http://i40.photobucket.com/albums/e215/xxs3xp1stolxx/module%20717%20test/Picture13.png

2007-10-21 18:04:31 · 5 answers · asked by Ryan S 1 in Mathematics

helpp plzz find x

2007-10-21 18:03:42 · 3 answers · asked by Anonymous in Mathematics

helpp plzzz

2007-10-21 18:02:26 · 2 answers · asked by Anonymous in Mathematics

What is the shortest procedure to follow to determine what 20 is 2% of?

2007-10-21 18:02:08 · 15 answers · asked by selah1925 1 in Mathematics

2007-10-21 18:01:24 · 7 answers · asked by glamour girl 1 in Mathematics

In our lab we performed an experiment where we mixed baking soda and hydrochloric acid. The mass of the reactants was more than the mass of the products.. why?

2007-10-21 17:59:34 · 4 answers · asked by Golden B 2 in Chemistry

http://i40.photobucket.com/albums/e215/xxs3xp1stolxx/module%20717%20test/Picture10.png

2007-10-21 17:58:33 · 1 answers · asked by Anonymous in Mathematics

How do you find all solutions real and complex on the following problem?


f(x)= (x^5)-(5x^4)+(12x^3)-(24x^2)+(32x)-16


thanks.

2007-10-21 17:57:33 · 4 answers · asked by Coma White 5 in Mathematics

factor in steps please:

2x^2-3x+4

2007-10-21 17:57:28 · 4 answers · asked by sh0rtcutie01 1 in Mathematics

Okay, so I get that Binary Molecular Compounds use prefixes, like N2O is Dinitrogen monoxide because there are two nitrogen atoms and one oxygen. But ionic compounds are more confusing. So I guess all I know is you just name the metallic element and then have and ide or ite after the non-metal element, but what do you call a compund that has like three symbols? For example: Na2CO3. So I would guess that this is Sodium carbonate Oxide or something, but that can't be right because there can't be three words right? Which do you use and why? Also, H2SO4. Is this Hydrogen Sulfide Oxite? Except Hydrogen is weird, it can be a metal or a non metal can't it? So Im basically really confused, and my textbook isn't much help. How do you name ionic compounds?

2007-10-21 17:55:59 · 3 answers · asked by Anonymous in Chemistry

Solve the inequality
x - 2
------- < 7
8

2007-10-21 17:54:29 · 2 answers · asked by jane 1 in Mathematics

The area of a rectangle is 300cm². Find the length and width if the ratio of length to width is 4:3

LENGTH = ?
WIDTH =?

2007-10-21 17:54:03 · 2 answers · asked by Paradromer 1 in Mathematics

http://i40.photobucket.com/albums/e215/xxs3xp1stolxx/module%20717%20test/Picture6.png

2007-10-21 17:52:01 · 3 answers · asked by Anonymous in Mathematics

http://i40.photobucket.com/albums/e215/xxs3xp1stolxx/module%20717%20test/Picture4.png

2007-10-21 17:49:35 · 2 answers · asked by Anonymous in Mathematics

Certain people are totally blind at birth and remain this way
through life

How do these people imagine a color?
What do they think if i say red, green or yellow?

Can they at least DREAM colors?

2007-10-21 17:48:43 · 7 answers · asked by ed s 3 in Medicine

2007-10-21 17:48:06 · 30 answers · asked by ? 3 in Biology

2007-10-21 17:47:17 · 12 answers · asked by ? 3 in Astronomy & Space

Solve the equation and express the solution in decimal form: 1.46x + 1.48(450 - x) = 661.5

2007-10-21 17:46:10 · 6 answers · asked by jane 1 in Mathematics

Find the circumference and area of a circle with radius of 7 feet. Use pi = 3.14 and round your answers to the hundredth.

C = 21.98ft and A = 615.44ft squared

C = 43.96ft and A = 153.86ft squared

C = 21.98ft and A = 153.86ft squared

C = 43.96ft and A = 615.44ft squared

2007-10-21 17:43:34 · 5 answers · asked by Anonymous in Mathematics