Science & Mathematics - 7 July 2007

I understand that the ester group in an aspirin molecule is released to acelytate the OH group on COX but what does the carboxylic acid do?

2007-07-07 10:30:16 · 2 answers · asked by jonnynomates1 4 in Chemistry

2007-07-07 10:26:45 · 5 answers · asked by batfink72 1 in Engineering

2007-07-07 10:24:31 · 8 answers · asked by Anonymous in Astronomy & Space

2007-07-07 10:23:03 · 8 answers · asked by pikita 1 in Earth Sciences & Geology

If you leave cd's in your car can they melt from the sunlight?

2007-07-07 10:21:25 · 5 answers · asked by BM 2 in Earth Sciences & Geology

2007-07-07 10:14:32 · 7 answers · asked by shadesofdustdrummer 1 in Biology

Can anyone explain how [(1-t)/t]/(t-1) simplifies into -1/t?

2007-07-07 10:14:02 · 3 answers · asked by oscarjr1990 2 in Mathematics

2007-07-07 10:14:02 · 12 answers · asked by Anonymous in Geography

Why ?

2007-07-07 10:12:05 · 7 answers · asked by Anonymous in Medicine

Sam likes 40% of her male friends, and 30% of her female friends. She has a total of 300 friends, 25% of them are male. How many male friends does she like?




30
25
45
55

2007-07-07 09:55:25 · 12 answers · asked by Chealsea Y 1 in Mathematics

Suppose you travel on the train and have to stand up in the same position for a long time. Often my legs get sore after I stand up for a long time. Are there any negative health consequences from this? What do the medical journals say?

2007-07-07 09:55:04 · 4 answers · asked by Anonymous in Medicine

mayan calendar, i ching and few european prophets have predicted Doomsday will happen in 2012. Scientists think pole shifting might occur on December 21, 2012 which might cause chaos all over the world like earthquakes, hurricanes etc.

2007-07-07 09:54:33 · 33 answers · asked by Annie 1 in Other - Alternative

1. ((x-2)/x) + (2/(x-1)) ≤ 2

2. (x+12)(x-9)/(x-1)≥0

2007-07-07 09:53:49 · 2 answers · asked by Anonymous in Mathematics

2007-07-07 09:51:43 · 3 answers · asked by dabbon 1 in Mathematics

eleven children enter the chess competition at school .each player plays one match against every other player .
haw many matches are there in total ?

2007-07-07 09:50:21 · 10 answers · asked by mark100414 1 in Mathematics

Find the slope of the line which passes through the points (-10, -9) and (-10, 8).

A 0
B Undefined
C 1/20
D 20

2007-07-07 09:49:07 · 6 answers · asked by Anonymous in Mathematics

A. 3/4
B. - 3/4
C. -2
D. 4/3

2007-07-07 09:47:20 · 9 answers · asked by Anonymous in Mathematics

Solve the equation 4x-2y= -12 for y.

A y=2x + 6
B y= -2x +6
C y= 2x -6
D y= -2x - 6

2007-07-07 09:46:16 · 4 answers · asked by Anonymous in Mathematics

i would like some stats on the bermuda triangle please.. anyone know any sites or info? im looking for something like.. 1 in X number of ships sink. that kinda stuff. thanks

2007-07-07 09:44:53 · 4 answers · asked by john doe 2 in Geography

Solve the equation 5y+10x=30 for y

A y=2x + 6
B y= -2x + 6
C y= 2x -6
D y= -2x -6

2007-07-07 09:44:36 · 5 answers · asked by Anonymous in Mathematics

2007-07-07 09:41:54 · 5 answers · asked by ballin2thefullest 1 in Mathematics

What is the correct formula for aluminum sulfide?

2007-07-07 09:40:52 · 8 answers · asked by yod 1 in Chemistry

I've been wondering this for a while.

If life is fairly unlikely, and I thought that's what scientists thought, then why is it that whenever I read a news item about our probes exploring our solar system, they always seem to EXPECT to find life?

Is this what actual scientists think?

Or is it just the article writers, raising the sexy possibility to get readers' attention?

What is the current thinking about how prevelant life is?

2007-07-07 09:40:29 · 7 answers · asked by tehabwa 7 in Astronomy & Space

and collides violently with the Visible Brane, or do you take a more 'hands on' approach to Physics and actually do something that is of use to Mankind. lol

2007-07-07 09:40:26 · 5 answers · asked by Anonymous in Physics

2007-07-07 09:37:49 · 7 answers · asked by Qamra Q 1 in Mathematics

Thousands of granules are brought from the beach to other areas, yet there still seems to be a large abundance of sand. where did this sand come from? and how is it reproduced (if it is reproduced)?

2007-07-07 09:28:17 · 7 answers · asked by Anonymous in Earth Sciences & Geology

What is the correct formula for calcium nitride?

2007-07-07 09:27:42 · 5 answers · asked by yod 1 in Chemistry

Find the difference quotient.

f(t)=1/t
f(t)-f(1)/t-1 where t does not equal 0

I need to learn this, and explanation would be greatly appreciated =)

2007-07-07 09:24:34 · 3 answers · asked by oscarjr1990 2 in Mathematics

How do I write each polar equation as an equation in rectangular coordinates (x,y) ?

2007-07-07 09:22:58 · 2 answers · asked by glam0urbarbie 2 in Mathematics

Which is the following solution of x=9

(-9,9)
(0,9) I believe this is correct
(6,3)
(9,4)

2007-07-07 09:20:37 · 9 answers · asked by Anonymous in Mathematics