Science & Mathematics - 8 January 2007

What kind of life form could have evolved on planet if all the planet was covered with one large ocean and no dry continent ? Any intelligent life that could have build skyscrapers under the sees?
Possible any aquatic civilization perhaps ?

Thanks

2007-01-08 06:52:53 · 4 answers · asked by motahed1 1 in Earth Sciences & Geology

No, really. I think it would be cool. I think we could do it too. And don't give me any of that crap about God hating the mammoths and smiting them from the earth for being gay.

2007-01-08 06:52:26 · 10 answers · asked by Finish Reading Ugly Rennaissance 4 in Biology

suggest 5 clues you would consider before deciding whether a change is physical or chemical

2007-01-08 06:51:25 · 1 answers · asked by Guitr Playrrr 2 in Chemistry

For example, to write a balanced (single replacement) equation for:

Zn + AgNO[sbscrpt3] ---> ?

I would have simply written

Zn + AgNO[sbscrpt3] ---> ZnNO[sbscrpt3] + Ag

However, the book lists the answer as


Zn + 2Ag(NO[sbscrpt3])[sbscrpt2] ---> Zn(NO[sbscrpt3])[sbscrpt2] + 2Ag

Why?

Is it because the O is diatomic, so you need to add:


Zn + AgNO[sbscrpt3] ---> Zn(NO[sbscrpt3])[SBSCRPT2 HERE] + Ag

Thus needing to add:

Zn + [COEFFICIENT 2 HERE]AgNO[sbscrpt3] ---> Zn(NO[sbscrpt3])[sbscrpt2] + Ag

And finally:

Zn + [coefficent2]AgNO[sbscrpt3] ---> Zn(NO[sbscrpt3])[sbscrpt2] + [COEFFICIENT 2 HERE]Ag


?

Also, how did the subscript 2 get added to just the (NO[sbscrpt3]) ... as in ZnNO[sbscrpt3]? I thought you couldn't add subscripts that weren't there to begin with so you'd have to make that whole part 2ZnNO[sbscrpt3], and add a 2 as the coefficent in the lone Zn on the left side of the equation?

Thanks a bunch!

2007-01-08 06:48:14 · 3 answers · asked by Anonymous in Chemistry

2007-01-08 06:47:48 · 2 answers · asked by ladytiger6969 1 in Medicine

2007-01-08 06:46:28 · 5 answers · asked by mohamed m 1 in Engineering

2007-01-08 06:43:30 · 1 answers · asked by kumar_markandan 1 in Engineering

2007-01-08 06:41:37 · 9 answers · asked by HAYLEY D 1 in Engineering

2007-01-08 06:40:41 · 9 answers · asked by ? 6 in Astronomy & Space

please help this project is due tommorow

2007-01-08 06:40:41 · 5 answers · asked by Anonymous in Chemistry

I need it today

2007-01-08 06:40:17 · 2 answers · asked by Cheerleader 2 in Botany

2007-01-08 06:39:53 · 1 answers · asked by mjducc 1 in Geography

2007-01-08 06:39:52 · 13 answers · asked by HAYLEY D 1 in Engineering

2007-01-08 06:35:41 · 13 answers · asked by lizcafc 1 in Biology

Describe how they work

2007-01-08 06:33:24 · 3 answers · asked by Anonymous in Biology

2007-01-08 06:31:21 · 10 answers · asked by electra 1 in Mathematics

Repost, but i did it wrong before.

2007-01-08 06:28:56 · 8 answers · asked by Anonymous in Mathematics

2007-01-08 06:28:10 · 8 answers · asked by Anonymous in Engineering

2007-01-08 06:28:07 · 5 answers · asked by scottykai 1 in Chemistry

2007-01-08 06:27:39 · 12 answers · asked by Shera 2 in Weather

2007-01-08 06:26:44 · 8 answers · asked by vjkiran 3 in Zoology

2007-01-08 06:26:32 · 4 answers · asked by Turnip 3 in Biology

With a plentiful supply of air, 3.0 parts carbon reacts with 4.0 parts oxygen to produce carbon monoxide. use this mass ratio to calculate how much carbon is required to produce 990g of carbon dioxide. the answer is 270 but how the hell this that happen?

2007-01-08 06:24:49 · 4 answers · asked by maya 4 in Chemistry

I've been doing some research, and have found that physics and psychology seem to cross at the point of quantum theory and cognition/intuition. The zero point field is a good read in all of this. If we are all made of just atoms and energy, and if all we technically can't see is this energy in it's vast form, then am i wrong in thinking consciousness (if implicated in such a way) can be seen as an individual part of a vast sea of energy? If MRIs, X-Rays, brainwaves/the conscious being's intuition, are evidence of EM's usefullness and power, Then does this mean we are all connected on a similar level somehow??Maybe to this pool of energy???

2007-01-08 06:24:22 · 7 answers · asked by Anonymous in Other - Alternative

2007-01-08 06:24:19 · 13 answers · asked by milgaa 1 in Mathematics

2007-01-08 06:23:59 · 2 answers · asked by Nicholas Lee 1 in Engineering

Early astronomers apparently used the method to calculate how far the sun was away from the earth with respectable accuracy. Basically I'm looking for the mathmatical formula, or laymans explanation.

2007-01-08 06:23:20 · 7 answers · asked by sevenchange_com 2 in Astronomy & Space

(2) Where does Meiosis occurs?
(3)What is the muscular canal lined with mucous ,which extend from the cervic to the vulva?
(3) What is the male sperm produced by?
(4) How many openings does the uterus have?
(5) Where does duplication of choromosome occurs?
(6) What coney the ova from the ovaries to the cavity of the uterus?
(7) In placental mammals, where is the embryo attached to the placenta by?
(8) What are alomond shaped glands that produce the ova and female hormones.
(9) Name the male reproductive organs?
(10) Where does Meiosis occurs?
(11) What is the union of a egg and sperm called?
(12) What is made up of sperm cells and secretions from the seminal vesicles, prostrate and cwper's glands?
(13) What is the male organ of copulation?

2007-01-08 06:22:12 · 2 answers · asked by rosemariestewart64 1 in Biology

I need answers for:

give one similarity and one difference of these body parts:

a) esophagus/small intestine
b) mouth/stomach
c) large intestine/esophagus

2007-01-08 06:20:02 · 2 answers · asked by barrelracer12 3 in Biology

2007-01-08 06:19:56 · 3 answers · asked by latif_1950 3 in Physics