Science & Mathematics - 18 October 2006

As cheap as possible

2006-10-18 08:43:47 · 3 answers · asked by Anonymous in Mathematics

Ammonium sulfide with silver nitrate?




Please write out how you got it!

2006-10-18 08:40:52 · 1 answers · asked by Alyssia S 1 in Chemistry

2006-10-18 08:40:13 · 6 answers · asked by Sir_john_Jr 1 in Astronomy & Space

Consider the following reaction:

4FeS2 + 11O2 -----> 2Fe2O3 + 8SO2

How many grams of Fe2O3 are produced from 500.0 g of FeS2 and 400.0 g of oxygen gas?

a. 35.30
b. 33.17
c. .0302
d. 266.2
e. 1331


Please Show Work!

2006-10-18 08:39:44 · 2 answers · asked by Alyssia S 1 in Chemistry

The midrange of a set of numbers is the average of the greatest and least value of a set. for a set of six distinct non-negative numbers, the mean, the median and the midrange are all 5. Find as many such sets as you can. the winner will be chosen as best answer. good luck.

2006-10-18 08:37:23 · 6 answers · asked by I Like Cheese 2 in Mathematics

2006-10-18 08:36:34 · 21 answers · asked by Anonymous in Earth Sciences & Geology

I've never seen one in the wild

2006-10-18 08:36:21 · 6 answers · asked by Anonymous in Zoology

Not that I would,but have seen it done,Why do these tubes glow in proximity to high power cables with no visible connections.At night it is quite visible.

2006-10-18 08:34:42 · 7 answers · asked by Francis7 4 in Other - Science

2006-10-18 08:34:41 · 6 answers · asked by disorder74 3 in Engineering

There is a wedge with mass m2 with angle theta, and another mass m1 on the slope of the wedge. There is a force F being exerted on the wedge from the flat side. Find an expression for the magnitude of the horizontal force F in the figure for which m1 does not slip either up or down along the wedge. All surfaces are frictionless.

2006-10-18 08:34:21 · 2 answers · asked by Bryan C 2 in Physics

2006-10-18 08:33:53 · 5 answers · asked by MALCOLM C 1 in Mathematics

2006-10-18 08:33:30 · 3 answers · asked by Anonymous in Biology

Tartaric acid has an empirical formula of C2H3O3. If 1 mole of tartaric acid contains 3.61x10(24) oxygen atoms, what is the molecular formula of tartaric acid?

I know I have to start by finding the molar mass, but how can I do that by knowing just the oxygen atoms?

The answer is C4H6O6, PLEASE tell me how to get there?

2006-10-18 08:33:04 · 4 answers · asked by sleepyface 2 in Chemistry

what would an organism miss the most alpha amylase, or oligo-1,6-glucosidase?? and why?

2006-10-18 08:30:56 · 1 answers · asked by Anonymous in Biology

antartic temperatures or sizziling temperatures
we need the heat then the cold don't we?


just very curious

2006-10-18 08:30:18 · 13 answers · asked by ? 2 in Weather

(a) x=3t^2, y=2t at t=2
(b) x=sin^20 y=cos0sin0 at 0=pi/6
(c) x=2t^3 y=2/t^2 at t=2

need to show workings. I'm really stuck

thanks

2006-10-18 08:29:40 · 3 answers · asked by oif1983 3 in Mathematics

i mean the water which is used for making photos from an camera reel .......how can silver be produced from that water ???? i knw it can be produced but how ?i dont knw............. some chemicals are added...... but i dont knw which chemicals .........plz tell me chemicals and whole process and............. plz only serious answers

2006-10-18 08:28:44 · 3 answers · asked by ronit 1 in Chemistry

can you tell me if tantalum can form ionic compounds, covalent compounds or both

2006-10-18 08:27:00 · 3 answers · asked by Anonymous in Chemistry

2006-10-18 08:23:19 · 7 answers · asked by Anonymous in Biology

2006-10-18 08:23:11 · 4 answers · asked by Boulevard of broken dreams 1 in Astronomy & Space

2006-10-18 08:23:05 · 9 answers · asked by neva_lyke_me 1 in Mathematics

Has anyone tried to do this or is it posibble? and would it possibilly make a fish imune to salt water and fresh water?

2006-10-18 08:22:56 · 4 answers · asked by flip 2 in Biology

There could be a star after the farthest star, that we just can't see, don't you agree?

2006-10-18 08:20:36 · 10 answers · asked by Anonymous in Astronomy & Space

Ok math book k= Unhelpful

Determine the standard form of the equation of a hyperbola with vertices (2,0) and passing through (4,3)

So if anyone could even just get me started that would be fantastic!

2006-10-18 08:19:44 · 1 answers · asked by gg 4 in Mathematics

2006-10-18 08:19:07 · 4 answers · asked by HAZEL5 1 in Other - Science

Each ball has a set mass of 0.46 kg. A green ball is traveling at 11.7 m/s and strikes a blue ball which is at rest. Assume that the balls slide frictionless on the surface and all collisions are head on. Find the final speed of the BLUE ball in each of the following situations (in units of m/s):

1. The green ball stops moving after it strikes the blue ball.

2. The green ball continues moving after the collision at 2.9 m/s in the same direction.

3. The green ball continues moving after the collision at 0.2 n/s in the same direction.

2006-10-18 08:17:55 · 5 answers · asked by Mariska 2 in Physics

Calculate the total pressure in atm, in a 6 L flask that contains 4.91 g Ne and 1.76 g Ar. The temperature of the gasses is 45 degrees Celsius.

2006-10-18 08:15:15 · 3 answers · asked by Anonymous in Chemistry

Is it the same as the half equivalence point?

2006-10-18 08:13:03 · 4 answers · asked by Anonymous in Chemistry

2006-10-18 08:12:42 · 7 answers · asked by Sugar Sweete 1 in Biology

What about addition of velocity of inertial mass motions?

2006-10-18 08:10:50 · 1 answers · asked by goring 6 in Physics