Science & Mathematics - 16 August 2006

I really need some questions. If you will give me,thanks a lot.

2006-08-16 00:38:52 · 7 answers · asked by sakura 1 in Mathematics

25.00cm^2 of a solution containing iron (II) and iron (III) sulphate required 20.50cm^2 of 0.02 mol dm^-3 pottasium pemanganate for oxidation. After complete reduction by zinc amalgum, 25.00cm^3 of the solution required 34.80cm^3 of the same pemanganate solution. Calculate the concentration of iron (II) and iron (III) ions present in the given solution. [RAM; H:1 ; O:16 ; Fe : 56].

I would appreciate an answer with a full explaination. I am totally lost with this. Thank you in advance.

2006-08-16 00:38:33 · 1 answers · asked by maths_dumbass 1 in Chemistry

Okay, I'm trying to catagorize different sciences as best I can, for study purposes, and this was the simplest way I came up with

First you have Physical and Social sciences, historical backgrounds and mathematical aspects would be studied along with the particular field of science. Then you would have abstract mathematics and general history, each being a group on their own (divided up internall of coarse, math into algebra, geometry, calculus, ect.)
Withe the physical and social sciences, they would be divided up and ordered by fundamentallity (I made that word up, don't complain about it), for physical sciences it would be physics, chemistry, biology, psychology, ect. with other groups for things like earth sciences.

I'm just wondering if I overlooked anything, or if anyone has any suggestions...

Thanks,

-David

2006-08-16 00:32:26 · 2 answers · asked by Anonymous in Other - Science

Explain the origins of the names of the 3 newly named ones.

2006-08-16 00:31:04 · 5 answers · asked by WendyD1999 5 in Astronomy & Space

2006-08-16 00:27:13 · 6 answers · asked by Anonymous in Mathematics

I just saw on the news that under new guidlines for the classification of planets there are now 12 planets in our solar system, rather that the commonly thought of 9. And this number is set to grow as other large, recently discovered, rocks on the fringes of the solar system are studied more. This new classifiaction system has greatly interested me, and I will be very pleased if someone can give me information about the system and the newly identified planets.

2006-08-16 00:26:10 · 5 answers · asked by True_Brit 3 in Astronomy & Space

2006-08-16 00:15:56 · 17 answers · asked by kadhal_days 1 in Physics

I'm little in English, so ... I would like to you explain this easy English

I want to work CSI

Please help me..

2006-08-16 00:09:53 · 5 answers · asked by Anonymous in Biology

now a days scientists are inventing a lot... are they capable enough to produce a god with supernatural powers as we hear in myths...we know science really exists does god really exist"

2006-08-16 00:04:22 · 8 answers · asked by Anonymous in Earth Sciences & Geology