Science & Mathematics - 25 August 2006

Write a balanced equation for the decomposition of baking soda (NaHCO3). One of the products is Na2CO3.

Then, calculate that mass of NaHCO3 required to produce 20.5g of CO2.

I need help terribly on this problem. PLease help me

2006-08-25 03:23:06 · 3 answers · asked by dingdong 1 in Chemistry

The method to find square-roots of a number is taught in schools. It is based on principle of divisions. How can one find cube-root of a positive number arithmatically, in a similar fashion. Use of log-tables, calculators or computers not allowed.

2006-08-25 03:19:38 · 8 answers · asked by innocent 3 in Mathematics

Could somebody, please, explain why?

2006-08-25 03:12:29 · 10 answers · asked by Anonymous in Astronomy & Space

Technoly that satellite is going to research a planet, now since Pluto is no longer a planet, that satellite serves no purpose.

2006-08-25 03:10:31 · 9 answers · asked by Anonymous in Astronomy & Space

some people say that they are man made but they have done research done that there is no evidence that there was weight put on the corn stalks so lets rule out that possibility then there is lightning weather can not make patterns like that so what u think

2006-08-25 03:08:45 · 12 answers · asked by Anonymous in Earth Sciences & Geology

Apparently there was an episode of Myth Busters where they either busted or proved it, but I missed it, and it doesent seem to be available online for my viewing pleasure. Can someone who saw it give me a summary?

2006-08-25 03:06:13 · 16 answers · asked by ? 3 in Other - Science

Its the phenomenon we always see that when you place a cup of water on the edge a rotating platform and spin it, the water level in the cup will tilt to one side.
What causes the water to tilt?
And why does the normal force acts perpendicular to the water surface?

Please provide concrete answers, ambiguous answers don't really help..

This question has been bogging my friends and my teachers could not really give me a satisfactory answer.

Thanks!

2006-08-25 03:03:08 · 5 answers · asked by ahse0w 2 in Physics

2006-08-25 02:59:36 · 3 answers · asked by wakeupandlivelife 2 in Chemistry

2006-08-25 02:55:08 · 4 answers · asked by kk 1 in Geography

2006-08-25 02:51:51 · 18 answers · asked by Cat 2 in Geography

2006-08-25 02:50:44 · 9 answers · asked by Anonymous in Astronomy & Space

If the orbits of the two planets overlap and it's claimed that Pluto does not satisfy the new definition of a planet because it has not cleared Neptune from its orbit is it not also true that Neptune has not cleared Pluto from its orbit and therefore cannot be a planet. You cannot claim that the difference is that Neptune is already accepted as a planet whereas Pluto's status is the one in question because that is circular thinking and therefore unjustifiable.

2006-08-25 02:49:18 · 12 answers · asked by torpe 1 in Astronomy & Space

Add points on
1. How entrepreneur are using scientists for there benefit and
2. How can a scientist be good entrepreneur

Prepare a nice speech and i'll give you 30 points

2006-08-25 02:47:24 · 3 answers · asked by Talib 2 in Other - Science

The word 'planet' has an etymology older than modern astronomy, and though the definition is imprecise, that's ok. A small group of men in wigs and white robes does not own the word "planet", we the people do.

They should have invented their own word. I for one refuse to accept their authoritarian equivocation. Will you join the revolt and take back that which rightfully belongs to us all?

2006-08-25 02:46:14 · 7 answers · asked by lenny 7 in Astronomy & Space

give me a tips to change the frquency for the machine that use a vibration as power

2006-08-25 02:45:37 · 5 answers · asked by lah_100 1 in Engineering

2006-08-25 02:44:27 · 14 answers · asked by carl d 1 in Weather

2006-08-25 02:42:35 · 12 answers · asked by Krish 21 1 in Biology

2006-08-25 02:41:32 · 2 answers · asked by mac_daddy011 1 in Astronomy & Space

2006-08-25 02:39:28 · 15 answers · asked by Krish 21 1 in Other - Science

what do scientist think caused extinction.and were can i fine=d the answer

2006-08-25 02:38:59 · 5 answers · asked by amy s 1 in Earth Sciences & Geology

...for Earth sized planets around other stars..I have been so busy recently I have lost track!!

2006-08-25 02:36:49 · 9 answers · asked by tee_hee_ssh 3 in Astronomy & Space

2006-08-25 02:32:46 · 14 answers · asked by ? 3 in Astronomy & Space

2006-08-25 02:29:03 · 25 answers · asked by dave c 2 in Biology

2006-08-25 02:26:25 · 16 answers · asked by Dartmouth Regatta 1 in Physics

2006-08-25 02:22:41 · 20 answers · asked by Anonymous in Physics

2006-08-25 02:20:57 · 14 answers · asked by aldimca 2 in Engineering

it will be comprehensive detail result.
thank you

2006-08-25 02:19:56 · 2 answers · asked by gene starwind 1 in Medicine

i have a test on the metric system and i dn't know anything about it can somebody give me some input by 8 45

2006-08-25 02:19:16 · 5 answers · asked by Anonymous in Mathematics

its a very easy chapter but i dont get it plz tell me in steps

2006-08-25 02:14:46 · 14 answers · asked by Anonymous in Mathematics

I think Michael Jackson is a likely suspect!!

2006-08-25 02:13:11 · 18 answers · asked by Mr Cheese 3 in Other - Science