Science & Mathematics - 8 January 2007

2007-01-08 10:19:32 · 2 answers · asked by Deana N 1 in Biology

Describe the series of chemical changes sulfur in fossil fuels goes through that may be harmful to plants and creatures that live in aquatic enviroments.

2007-01-08 10:18:13 · 2 answers · asked by ♥Roberta. 5 in Chemistry

I have a friend who's on welfare, but it's dissappointing his wife. How can he give the money back to the taxpayers? He's a victim of cancer.

2007-01-08 10:17:37 · 8 answers · asked by Black Tom Vane 1 in Biology

why did they make a microwave?

2007-01-08 10:17:29 · 11 answers · asked by Anonymous in Engineering

Which is likely to bend more for a given change in temperature?

please explain best as possible

Two bimetallic strips have identical shapes one is made from aluminum and steel, while the other is made from copper and silver. Which is likely to bend more for a given chance in temperature? Justify your answer.

Thanks

2007-01-08 10:14:23 · 1 answers · asked by bhangraking777 1 in Physics

2007-01-08 10:11:48 · 5 answers · asked by eaglekahne 1 in Biology

Propionic acid, CH3CH2COOH, has a Ka of 1.6x10^-6. What is the pH of a solution containing 0.5 M CH3CH2COOH (undissociated) and 0.5 M CH3CH2COO- (propionate ion)? [ such a solution can be made by adding sodium propionate to a solution of a propionic acid. ]

2007-01-08 10:10:33 · 1 answers · asked by Anonymous in Chemistry

2007-01-08 10:10:11 · 6 answers · asked by Anonymous in Biology

explain 2 examples

2007-01-08 10:08:24 · 3 answers · asked by Anonymous in Earth Sciences & Geology

why is that?

2007-01-08 10:07:33 · 4 answers · asked by Anonymous in Astronomy & Space

Thanks?

2007-01-08 10:05:16 · 8 answers · asked by Garret Tripp 3 in Mathematics

2007-01-08 10:05:12 · 4 answers · asked by girlsrule688 1 in Mathematics

2007-01-08 10:05:04 · 4 answers · asked by Larry W 1 in Zoology

My dream, since I was 7 years old was to become a surgeon in the United States. Me and family have emigrated to us 6 years ago, and that dream is closer then ever. Problem is, I am not great in chemistry. I have an A- in the class, but It is not a class that I enjoy the most(the least would be more accurate). I do like biology and physics though. I am prepared to not have a social life in college, and be on top of my class. I am very ambitious and motivated, and I wouldnt even mind working 80 hour weeks.

2007-01-08 10:04:31 · 13 answers · asked by Anonymous in Medicine

2007-01-08 10:04:18 · 3 answers · asked by Marquis J 1 in Mathematics

2007-01-08 10:04:00 · 9 answers · asked by Anonymous in Weather

2007-01-08 10:03:56 · 7 answers · asked by girlsrule688 1 in Mathematics

1 meter-???? mm

2007-01-08 10:01:17 · 7 answers · asked by ~*~IM'A FLIRT~*~ 1 in Mathematics

Even though lead is toxic, many lead compunds are still used as paint pigments. What volume of 1.50mol/L lead(II) acetate contains 0.400 Pb ions.

2007-01-08 10:00:33 · 2 answers · asked by nicofara 1 in Chemistry

2007-01-08 09:59:12 · 9 answers · asked by JOHN Y 2 in Zoology

2007-01-08 09:56:28 · 4 answers · asked by girlsrule688 1 in Mathematics

I am doing a project, and i really need to know:

What's in an traditional Aboriginal Lunch?

Thanks so much!

2007-01-08 09:56:18 · 2 answers · asked by Anonymous in Geography

what are altitudes?

2007-01-08 09:55:10 · 2 answers · asked by Anonymous in Mathematics

1.A bungee cord is stretched to twice its length. What changes? Its mass? volume? density?

2. Two shoe boxes are identical in size. One contains beans and the other contains popcorn. What is the same and what is different? Mass? Volume? Density?

3. Besides shape, what is different between a 300 gram rectangular lock of copper and a 300 gram round ball of copper? Mass? Volume? Density? Explain your reasoning.

Thank you sooo much in advance!! :)

2007-01-08 09:54:02 · 7 answers · asked by Aanchi11 2 in Chemistry

i want to stop time can someone help me?

2007-01-08 09:53:27 · 30 answers · asked by Anonymous in Astronomy & Space

Considering how much we have advanced in the past 100 years, what do you think will happen in 100?


Any ideas???

2007-01-08 09:51:45 · 3 answers · asked by Anonymous in Physics

help with substitution, elimination, conformational analysis, stereoisomerism and general reaction chemistry. All help much appreciated.

2007-01-08 09:50:56 · 5 answers · asked by Michael W 2 in Chemistry

2007-01-08 09:50:19 · 6 answers · asked by Anonymous in Earth Sciences & Geology

2007-01-08 09:49:51 · 11 answers · asked by krystal r 1 in Mathematics

these trees are fund in the forest

2007-01-08 09:49:46 · 1 answers · asked by eaglekahne 1 in Botany