Science & Mathematics - 11 December 2007

1. molar mass
2. percent composition
3. volume at STP
4. number of particles per mole

2007-12-11 10:52:25 · 2 answers · asked by tipmdavis216 1 in Chemistry

Example: calcium sulfate, potassium chloride, calcium carbonate, etc.

2007-12-11 10:49:02 · 2 answers · asked by Anonymous in Chemistry

Okay, what are those plants called that can live in both cold,warm and tropical temperatures?

2007-12-11 10:48:18 · 3 answers · asked by Scarlet <3(; 2 in Agriculture

just imagine this thing, with all modern equipment



do not forget to star me if u like, please

2007-12-11 10:47:14 · 14 answers · asked by Anonymous in Astronomy & Space

Must be made of metal such as aluminium

2007-12-11 10:46:34 · 4 answers · asked by steam4power 1 in Engineering

2007-12-11 10:46:21 · 4 answers · asked by marcus x 1 in Astronomy & Space

star me if u like this question

2007-12-11 10:44:46 · 6 answers · asked by Anonymous in Earth Sciences & Geology

I'm not sure...there are arguements on both sides. However I find it strange that the Russians were first into space in Oct '57 and in just 12 years the Americans supposedly flew to the moon and back. An incedible achievement if its true.

There was a huge political gain at the time to be made upon being the first there, so even if they didn't its probably the most incredible piece to Western propergana ever to have been staged. Again an incedible achievment

I'm just not sure either way....

2007-12-11 10:44:45 · 21 answers · asked by cheekybear 5 in Astronomy & Space

2007-12-11 10:44:08 · 5 answers · asked by ??? 1 in Weather

Northern and Southern hemispheres have changing daytime lengths due to angle of earth to sun, but is it the same effect at the equator?

2007-12-11 10:42:28 · 8 answers · asked by Nick Name 7 in Earth Sciences & Geology

Many people observed the Atlas-Centaur fuel dump 12/10/07. From my location farther north than most observations it was in Perseus near the expected position of Comet Holmes. West-southwest at about 50 degrees elevation. Looking for other estimates of direction and height above the horizon. I'd like to try and calculate the actual position and altitude. Time and constellation in the background would be interesting but not necessary for this estimate. Best guess. Thanks to all.

2007-12-11 10:42:15 · 2 answers · asked by Cirric 7 in Astronomy & Space

is carbon monoxide heavier or lighter than air?

2007-12-11 10:42:02 · 3 answers · asked by wlyl3 2 in Engineering

help! please, i dont know.

2007-12-11 10:41:48 · 2 answers · asked by Aly[: 1 in Earth Sciences & Geology

2007-12-11 10:41:22 · 5 answers · asked by "Silence" 2 in Earth Sciences & Geology

Hey everyone I need your help. I was assigned a physics ISU and am wanting to build a guitar. I currently own an accoustic so I know the principles. I am wishing to build another accoustic for the project but I also want to play it (so no rubber band guitars). Where can I find plans (besides google) to build it (Im on a budget so I can't spend a lot)?

2007-12-11 10:38:16 · 1 answers · asked by raptorm79 1 in Physics

2007-12-11 10:37:49 · 4 answers · asked by JOHN 2 in Earth Sciences & Geology

what are the 14 countries that boarder russia?
thanksss!!!

2007-12-11 10:36:25 · 5 answers · asked by ;) 2 in Geography

A skier traveling 12.0 m/s reaches the foot of a steady upward 18° incline and glides 10.2 m up along this slope before coming to rest. What was the average coefficient of friction

2007-12-11 10:34:58 · 2 answers · asked by roofchelsea 1 in Mathematics

I need help with this problem:

An isosceles trapaziod has sides whose lenghts are in the ratio 5:8:5:14. Find the measure of the angle between one of the legs and the shorter base

Thanks for the help!!

2007-12-11 10:33:54 · 1 answers · asked by Mia16 3 in Mathematics

I need this before 12/13

2007-12-11 10:33:27 · 3 answers · asked by garfield381183 2 in Astronomy & Space

animals biology bear wolf

2007-12-11 10:33:12 · 3 answers · asked by xochitlbear 2 in Zoology

Can someone check my answers please.

The formula for calculating the amount of money returned for an initial deposit into a bank account or CD (certificate of deposit) is given by

A=P(a+r/n)^nt

A is the amount of the return.
P is the principal amount initially deposited.
r is the annual interest rate (expressed as a decimal).
n is the number of compound periods in one year.
t is the number of years.

Carry all calculations to six decimals on each intermediate step, then round the final answer to the nearest cent.

Suppose you deposit $4,000 for 8 years at a rate of 7%.

Calculate the return (A) if the bank compounds annually (n = 1). Round your answer to the hundredth's place.

P=4000
r=.07
t=8
n=1
A= ?

A=(4000)(1+.07/1)^(1)(8)
A=(4000)(1.07)^8
A=(4000)(1.71818)
A=$6,872.72

2007-12-11 10:32:53 · 1 answers · asked by cupnnas2002 3 in Mathematics

2007-12-11 10:32:28 · 2 answers · asked by trumpetchic189 1 in Earth Sciences & Geology

Okay is there a difference between a scientific name of the animal and its genus. Because i have to do an essay and i don't know what to use for the jaguar's scientific name and its genus. help... thanks lulu♥

~also what is a physiological adaptation of the jaguar??

2007-12-11 10:32:00 · 3 answers · asked by Anonymous in Zoology

2007-12-11 10:31:35 · 3 answers · asked by Anonymous in Mathematics

math, show work please

2007-12-11 10:23:14 · 1 answers · asked by Danilo O 1 in Mathematics

2007-12-11 10:23:02 · 2 answers · asked by mohd h 1 in Geography

2007-12-11 10:21:54 · 2 answers · asked by mohd h 1 in Geography

2007-12-11 10:21:52 · 18 answers · asked by Anonymous in Zoology

combine into a single logarithm and siplify
4logx- log(x^2y)+ log(3y)

they are all base 10..
any ideas on how to go about this one? is the only problem i couldnt solve!!!

2007-12-11 10:19:24 · 3 answers · asked by rnyc14 2 in Mathematics