Science & Mathematics - 2 November 2006

Science test tommorrow, please help quickly

2006-11-02 12:21:36 · 3 answers · asked by Matthew 2 in Earth Sciences & Geology

2006-11-02 12:21:00 · 8 answers · asked by carmel32 1 in Geography

what are some toxic elements? elements only please.... and pleaSE HELP BECAUSE (sorry i didn't mean to do caps lock) the best of the first three or four ANSWERS to my questions (listed below) will automatically be chosen as best answer.
the info i need
1) a toxic element
if POSSIBLE:
2) type of element (nonmetallic, metal, metalliod)
3) atomic number
3) atomic mass
4) properties of that element,
ex. where found, natural state at room temperature, availablility on earth, natural existence on earth or not, why it is poisonous, and how it is poisonous, ETC... you know..
5) any other thing or anything else if possible
THANK YOU SOOO MJCH... please answer!!!!!! or email me, or whatever... or give me a link to a helpful site..

2006-11-02 12:20:57 · 6 answers · asked by GeTtHeExTrAcReDiTcUzIaM2mUcH4yOu 2 in Chemistry

Mona Yahuso earns three times as much as an actuary as she does as a writer. Her total income is $40,000 more than that of her brother. He earns half as much as Mona does as an actuary. What is Mona's salary as an actaury?

USE ONLY ONE VARIABLE, and show work

2006-11-02 12:20:48 · 9 answers · asked by Anonymous in Mathematics

Science test tommorrow, please answer

2006-11-02 12:20:07 · 6 answers · asked by Matthew 2 in Botany

2006-11-02 12:15:19 · 2 answers · asked by John_Baugh 1 in Botany

Describe effect on Enzyme concentration?

2006-11-02 12:13:47 · 4 answers · asked by Kakak 1 in Biology

when finding four consecutive odd integers with a sum of 88. Must we use (2x+1)+(2x+3)...or can x + (x+2) + (x+4) do?

2006-11-02 12:11:56 · 8 answers · asked by pahrump4now 1 in Mathematics

what are the first 5 numbers if you:

1. "start at 10,double the number before this one,and subtract 1".

2. "start at 2, triple each number and add 1".

2006-11-02 12:11:05 · 5 answers · asked by kogmu 3 in Mathematics

what are the first 5 numbers:

1. "start at 10,double the number before this one,and subtract 1".

2. "start at 2, triple each number and add 1".

2006-11-02 12:10:25 · 3 answers · asked by kogmu 3 in Mathematics

I typically do well in math and I'm interested in either architectural or civil engineering.

2006-11-02 12:09:27 · 8 answers · asked by Bo Bocks 1 in Engineering

Calculate the density, g/cm3, of propane C3H8 at 95.0oC and 874 torr.

Remember, to enter an answer in exponential notation use e, example: 1.47e-8

HELP ME!!

2006-11-02 12:07:55 · 1 answers · asked by Anonymous in Chemistry

It says Describe how the particles move in all four states of matter

2006-11-02 12:06:58 · 3 answers · asked by Anonymous in Physics

adenine, guanine, cytosine, and thymine are four kinds of________bases in DNA...

2006-11-02 12:06:53 · 9 answers · asked by Anonymous in Biology

2006-11-02 12:06:39 · 2 answers · asked by Stevie B 2 in Chemistry

i need a hypthesis for my science fair project !plz help!

2006-11-02 12:06:33 · 2 answers · asked by Anonymous in Zoology

2006-11-02 12:06:03 · 2 answers · asked by Anonymous in Chemistry

2006-11-02 12:05:10 · 1 answers · asked by Stevie B 2 in Chemistry

From CuSO4*H20, The first weight was 1.57g, when heated, .57g of Suso4 was Left, How many Moles of Water(H20) was Lost?

1g/18g of H2O=.0556g/mol
.57g/(63.55*32.07*16*4) -->> .57/ 130435.104= 4.3699x10^-6

So now we divide both of them by teh lowest mole which for this equation is .0556g, right? But is the CuSO4 right? (The Mole)

Can someone check and answer this? Thank You!

2006-11-02 12:04:33 · 2 answers · asked by Anonymous in Chemistry

2006-11-02 12:04:26 · 3 answers · asked by magdak204 2 in Astronomy & Space

2006-11-02 12:04:12 · 5 answers · asked by Anonymous in Chemistry

The problem is:
A spy plane on a practice run over the Midwest takes a picture that shows Cleveland Ohio on the eastern horizon and St. Louis Missouri, 520 miles away on the western horizon. Assuming the radius of the earth is 3950 miles, how high was the plane when the picture was taken.Hint: The sight lines from the plane to the horizons are tangent to the earth and a tangent line to a circle is perpendicular to the radius at the point. The arc of the earth between St. Louis and Cleveland is 520 miles long. Use this fact and the arc length formula to find angle theda

I know the answer is about 8.6 miles but I don't know how to get there

The arc length formula is the radius times the radian measure of the central angle of the arc

2006-11-02 12:04:05 · 2 answers · asked by n1ck34@sbcglobal.net 4 in Mathematics

2006-11-02 12:02:23 · 2 answers · asked by My Life is in Black and White 4 in Earth Sciences & Geology

2006-11-02 11:57:35 · 2 answers · asked by doll 1 in Medicine

2006-11-02 11:57:24 · 10 answers · asked by Terra 1 in Geography

My science fair experiment involves putting chalk into different liquids with different acidic levels and seeing what happens. None of the chalks seem to be too eaten away and none have come close to disintegrating. It's rather a bummer. Anything I can do to make this project better/work?

2006-11-02 11:56:29 · 3 answers · asked by Ladeedah 2 in Other - Science

2006-11-02 11:55:12 · 2 answers · asked by Leese 2 in Chemistry

2006-11-02 11:51:19 · 3 answers · asked by Samina T 1 in Chemistry

Thank you!

2006-11-02 11:50:48 · 7 answers · asked by Anonymous in Geography

3/5x=-21 what is (X) that is 3 over 5
2/3x+8/3=20/3 what is (X)
c/-7=12 what is (C)
3/4x-2/5=4/7 what is (X)

2006-11-02 11:50:04 · 5 answers · asked by endofthetailbunnies 2 in Mathematics