Science & Mathematics - 30 October 2007

10 pts guaranteed to first correct answer
Use the responses below to answer the following questions.

a.) CH4
b.) NH3
c.) NaCl
d.) N2
e.) H2

1.) This substance undergoes ionic bonding(?) Would it be CH4?

2.) This Molecules contains two pi-bonds? N2

3.) This substance undergoes hydrogen bonding? NH3?

Which answers are for which? Why?

2007-10-30 15:27:07 · 3 answers · asked by Work Hard, Make Money, Enjoy Life... 3 in Chemistry

The hornless condition in cattle is dominant over horned. A cattleman hasd a herd of hornless cattle only, but some horned cattle occasionally appear. These are removed from the range before they can produced. Assuming that this man has good fences that can keep out stray bulls, how could this be explained?

2007-10-30 15:27:00 · 5 answers · asked by Anonymous in Biology

I don't remember how to do these y=mx+b problems. I got it wrong on my test .

The graph of 5y - 4x = 36 passes through which of the following points? The answer choices are a- (0,-9), b- (4,-4) or d- (-9,0). I took off c- (-4,4) because that's not the right answer.

How do you solve it?

2007-10-30 15:24:36 · 13 answers · asked by csj 1 in Mathematics

Without Oxygen, a cell can only extract a net gain of only________ molecules of ATP.

2007-10-30 15:24:24 · 4 answers · asked by Anonymous in Biology

A short-haired tom is mated with angora femalee. She bears 8 kittens, 6 short-haired and two with long hair. How do these numbers compare with the expected ratio? If you mated these same cats four more times and obtain a total of 40 offsprings, would you expect the results to be a closer approximation of the expected ratios?

2007-10-30 15:22:56 · 5 answers · asked by Anonymous in Biology

Explain how carrier proteins help in facilitated?

2007-10-30 15:21:56 · 4 answers · asked by RJ 2 in Biology

1)10
2)20
3)45
4)70

2007-10-30 15:21:42 · 1 answers · asked by Aditya G 1 in Earth Sciences & Geology

What is cytolysis & what causes it?

2007-10-30 15:21:04 · 2 answers · asked by RJ 2 in Biology

2007-10-30 15:21:02 · 5 answers · asked by Anonymous in Biology

What happens to a plant cells placed in a hypertonic solution? Name this process.

2007-10-30 15:20:07 · 4 answers · asked by RJ 2 in Biology

How does a unicellular paramecium get rid of its excess water? Is energy used?

2007-10-30 15:18:09 · 2 answers · asked by RJ 2 in Biology

Please help me!!!!!

2007-10-30 15:17:34 · 0 answers · asked by Anonymous in Mathematics

A bottle of wine contains 12.3% ethanol by volume. The density of ethanol (C2H5OH) is 0.789 g/cm3. Calculate the concentration of ethanol in wine in terms of mass percent and molality.

mass percent?

molality?

2007-10-30 15:16:14 · 1 answers · asked by Jake H 1 in Chemistry

There was a test, I had to put my hands on two metal plates, the flowing current was displayed in Microamperes.
I scored 15, my friend was more than 50.
How does it work, and is there some meaningful information in that anyway?

2007-10-30 15:12:14 · 1 answers · asked by Anonymous in Engineering

Assuming 29.5 days between full moons, I calculated this ought to happen roughly every 236 years. Wikipedia lists several years where February had no full moon, but were leap years. Hint: For this to happen, there must be two full moons in January and March ( one or two blue moons, depending on the definition you use).

2007-10-30 15:12:00 · 1 answers · asked by bpiguy 7 in Astronomy & Space

2007-10-30 15:10:18 · 4 answers · asked by Alfredo G 1 in Geography

The user "Siddhartha Basu" posted four consecutive questions and in all of them gave the best answer to "Goutam", even though Goutam was never first with the correct answer, and often gave fewer details than other answerers. For example, in this case, Goutam just put one number:

http://answers.yahoo.com/question/index;_ylt=Am6dIA3II1E.mx_E02pyVpXty6IX;_ylv=3?qid=20071026213944AAb3aRt&show=7#profile-info-I1MBt7myaa

In this case he copied my answer verbatim:

http://answers.yahoo.com/question/index;_ylt=Aox5xofvyvuDHQUpLVd.qkTty6IX;_ylv=3?qid=20071026213856AA0g5gM&show=7#profile-info-I1MBt7myaa

This also happened in two other cases (which you can find by looking at either "Siddhartha Basu" or "Goutam"'s profiles.

Has this happened to others? What is the proper way to address this?

I do not know if it should, but this kind of thing really bugs me, and makes me much less inclined to take my time to type out explanations to questions.

Thanks for your advice!

2007-10-30 15:10:16 · 7 answers · asked by Phineas Bogg 6 in Mathematics

2007-10-30 15:09:03 · 13 answers · asked by Hey there Sexy Pants 2 in Geography

2007-10-30 15:08:53 · 2 answers · asked by A learner 1 in Engineering

list in the order from Largest to smallest.... atoms, neutron, electron, Carbohydrate, cow sugar, element, lipid, nucleic acid, protein, water, molecule, Corn, and nucleus.

2007-10-30 15:03:32 · 1 answers · asked by cheerleader4life!!! 2 in Chemistry

2007-10-30 15:02:20 · 5 answers · asked by callee1968 2 in Mathematics

what's the use of our powerful scope that can capture images from far away galaxies? please provide me with a convincing answer/s....jhunnamzon

2007-10-30 15:02:02 · 16 answers · asked by Dionisio M 1 in Astronomy & Space

In short a neutron star in an odd orbit that passes the earth every 3600 year reeking havoc.

http://web.comhem.se/abzu/micro/nibiru.html

2007-10-30 15:01:01 · 11 answers · asked by moscow1677 2 in Astronomy & Space

Does anyone here believe in the paranormal? If so, did any of you ever have a paranormal experience? And lastly does anyone know what TAPS is , and do you like ghost hunters? <3

2007-10-30 14:58:14 · 11 answers · asked by Kitsch Nouveau; 2 in Paranormal Phenomena

A rectangle has an area of 70 square inches and a width of 3.5w. What is the length of the rectangle in terms of w?

Please help i need this answer!

2007-10-30 14:54:40 · 3 answers · asked by Doc Yankee30™ 5 in Mathematics

it says to complete and balance the following chemical reactions...

I thought the answer would be HNO3(aq) +AgCl(aq)

but i looked at another question and someone said it was H2NO3 -> H20 + NO2 which makes no sense because the charge on Nitrate is -1 and the charge on hydrogen is +1
so umm which is the right answer ty

2007-10-30 14:53:25 · 5 answers · asked by Anonymous in Chemistry

I remember this episode on ABC Family called "Most Terrifying Places" or something and there was a home video of a woman riding a horse and in the background was a dark figure standing there. It freaked me out but I really want to see it again!

2007-10-30 14:53:19 · 4 answers · asked by Anonymous in Paranormal Phenomena

Can someone explain to me why ionization energy increased as you move more electrons from anatom and does it follow a trend?

2007-10-30 14:52:14 · 1 answers · asked by Gamer G 4 in Physics

2007-10-30 14:49:42 · 1 answers · asked by Anonymous in Chemistry

she said that the hand sanitizer stuff for your hands are actually bad for you and that you actually need germs to surivive and that germs are good for you, that yoru body needs to be with the germs? and i was like hell no! lol??

2007-10-30 14:49:16 · 8 answers · asked by Anonymous in Biology