Science & Mathematics - 17 October 2006

elements / valence
Na+1 + I-1 name: sodium iodide
H+1 + H-1 Hydrogen gas
C+4 + O-2 Carbon dioxide

2006-10-17 12:11:52 · 2 answers · asked by dolphinsgal97@verizon.net 1 in Chemistry

Consider two flasks that are connected by a valve.

One flask has a volume of 2.00L and contains H2 at a pressure of 200.0 Torr. The other flask has a volume of 3.00L and contains N2 at an unknown pressure. If the total pressure in the flasks is 260.0 Torr after the valve is opened, what was the initial pressure of the N2 in the 3.00L flask?

2006-10-17 12:11:20 · 2 answers · asked by Anonymous in Chemistry

2006-10-17 12:09:14 · 5 answers · asked by Anonymous in Mathematics

I believe the answer is undefined. Any objections?

2006-10-17 12:06:53 · 6 answers · asked by crazylifer 3 in Mathematics

2006-10-17 12:06:25 · 5 answers · asked by Anonymous in Chemistry

Okay, so I have homewrok and i dont feel like doing it, so I need some answers for 3 very easy science questions. I willl choose the best answer as the most correct. (And please make the answers sound 7/8th gradish, not highschoolish.
1) Why do organisms need to move sugars into their cells?
2) Explain how photosynthesis and cellular respiration are related
3) Are exocytosis and endocytosis examples of active or passive transport? Eplain your answer

2006-10-17 12:04:38 · 6 answers · asked by Amber R 2 in Biology

In 4H+(aq) + Pb(s) + PbO2(s) + 2SO42-(aq) -> 2PbSO4 + 2H2O(l), what is the oxidizing agent, and what is the reducing agent?

and in 6H2O(l) + 3S2-(aq) + 2CrO42-(aq) -> 2CrO2-(aq) + 3S(s) + 8OH- what is the oxidizing and reducing agent?

Please explain, don't just answer. Thank you.

2006-10-17 12:02:27 · 2 answers · asked by Anonymous in Chemistry

What is the oxidation number of P in Mg2P2O7?
of S in Na2S2O3?
of W in W(CN)4?

Thanks.

2006-10-17 12:00:30 · 2 answers · asked by Anonymous in Chemistry

2006-10-17 11:58:48 · 24 answers · asked by Anonymous in Mathematics

I need to know now!

2006-10-17 11:57:49 · 9 answers · asked by Tyler A 1 in Earth Sciences & Geology

2006-10-17 11:57:44 · 4 answers · asked by razcue_497azra 1 in Other - Science

can you prove you exist?

2006-10-17 11:56:35 · 10 answers · asked by connie 1 in Astronomy & Space

2006-10-17 11:56:05 · 11 answers · asked by RACHEL T 1 in Other - Science

class of order

2006-10-17 11:54:59 · 3 answers · asked by herivaux s 1 in Biology

2006-10-17 11:54:24 · 19 answers · asked by graftonbabe 1 in Other - Science

HELP ME PLZ!!! thank u!!!?
I was absen from skool and missed math!! Math was always hard for me so can somebody plz help me with this stuff???

Explain how to:
* Turn % into decimal
*Turn decimal into %
*Turn % into fraction
* Turn fraction into %
*Turn decimal into fraction
* Turn fraction into decimal

2006-10-17 11:54:11 · 9 answers · asked by yourbiggestfan:) 4 in Mathematics

I have a BS degree in electrical engineering, and I am working on my MS degree in EE now. I am doing a large chunk of my coursework and research in the power area. I plan to head out into industry after completing my master's (maybe work for a power plant, research lab or power electronics manufacturer, not sure as of yet).

Would it be worth it to pursue a PE license in my case? I have heard that it sometimes isn't that helpful in advancing your career options depending on your situation.

Thanks for your input!

2006-10-17 11:54:01 · 6 answers · asked by Ubi 5 in Engineering

Im pretty sure 3 points are all you need to define a quadratic, so how do i do it?
i know the basic equation will be ax^2+bx+c, how do i find the a,b,c factors using only three sets of coordinates?
(x1,y1),(x2,y2),(x3,y3)

2006-10-17 11:52:59 · 4 answers · asked by Game Theorist 2 in Mathematics

Does X =
1) 0, -1/3
or
2) 0, 3
or
3) 0, -3
or
4) 0, 1/3

2006-10-17 11:50:44 · 6 answers · asked by crazylifer 3 in Mathematics

hi people,
I have a really serious question,
I want some FACTS in HOW THE NILE RIVER HELPED IN FORMING THE ANCIENT EGYPT?

this was my first and second is:
HOW DID COLORADO RIVER OR MISSISIPI RIVER HELPED IN FORMING THE LAND??

PLEASE HELP ME!!!!!!
iN THE SECOND ONE, WRITE ON ANY RIVER.!
THANKS TO ALL OF YOU.
AND I WANT THE SOURCE OF INFORMATION TOO WITH THE FACTS!
GIVE ME 1 ON EVERYONE!!

I WILL CHOOSE THE BEST ANSWERS TODAY AT EIGHT O' CLOCK SO PLEASE TELL ME!

2006-10-17 11:50:16 · 2 answers · asked by Anonymous in Other - Science

I know they were controversial and performed on an orphan boy, but I need more details. Ten points for a good answer before my class starts @9pm est.

2006-10-17 11:48:21 · 3 answers · asked by imjustasteph 4 in Other - Science

2006-10-17 11:47:11 · 5 answers · asked by Tony K 1 in Mathematics

The Garcia family drove from Houston to San Antonio. They filled their car's tank wiith 12.8 gallons of gas before they left Houston. They filled the tank with 10.2 gallons when they arrived in San Antonio. If gas cost $1.29 per gallon, how much did they spend on gas.

2006-10-17 11:46:46 · 11 answers · asked by yubi101 3 in Mathematics

If g(x)= x^2- 2x + 4

2006-10-17 11:46:19 · 7 answers · asked by waaah!!!? 1 in Mathematics

2006-10-17 11:43:07 · 9 answers · asked by G-mez 1 in Botany

2006-10-17 11:42:24 · 10 answers · asked by G-mez 1 in Botany

2006-10-17 11:40:49 · 12 answers · asked by crazylifer 3 in Mathematics

2006-10-17 11:39:57 · 2 answers · asked by razcue_497azra 1 in Other - Science

1.Rochelle is flying to New York for her big Broadway debut. If the plane heads out of Los Angeles with a velocity of 220. m/s in a northeast direction, relative to the ground, and encounters a wind blowing head-on at 45 m/s, what is the resultant velocity of the plane, relative to the ground?

2006-10-17 11:39:12 · 3 answers · asked by robertk41590 1 in Physics

Honestly I think that you could pick any one. But only the people who composed the test would know for sure. What do you think?
Potatoes... In the ground, legumes, brown, they have 'eyes'.
Peas... multiple seeds/berries in a pod, green, legumes, fruit?
corn... cereal, multiple seeds, yellow, technically fruit.
tomatoes... multiple seeds, red, a fruit.

2006-10-17 11:38:48 · 24 answers · asked by eantaelor 4 in Botany