Science & Mathematics - 10 October 2006

H2SO4 + 2NaOH -> Na2SO4 + 2H2O

Help!
How to I even begin to solve this?!

2006-10-10 10:45:09 · 4 answers · asked by megan6288 1 in Chemistry

2006-10-10 10:45:04 · 14 answers · asked by Anonymous in Astronomy & Space

Is it possible to take, for example, solar energy 'A' (that has already been stored) and magnify 'A' with further (new) solar energy ('B') to create more power than A and B would have if they were to just be combined normally? Sort of like a chemical reaction, perhaps?

To explain further, I would imagine that solar energy is built up to be one big energy in normal circumstances. (For lack of better way to explain.) However, would it be possible to store a certain amount of solar energy, then take some more energy from the sun and somehow take that energy and use it to increase the energy of the previously stored energy? And on and on until it's being magnified in large amounts as you collect small amounts of energy and magnify the energy you continue to store? ....

It's hard to explain! But I'm wondering if anyone knows if this is at all possible?

2006-10-10 10:44:39 · 4 answers · asked by Alisa 2 in Physics

This is my last homework problem and I just need help with part a after I get part a I'll be able to do b-d. Here it is:

An open box with a square base is required to have a volume of 10 cubic feet.

a) Express the amount A of material used to make such a box as a function of the length x of a side of the square base.

p.s. A = Area

And can you explain the steps you used to get the answer. I don't want you to just do the problem for me I wanna know how to do it myself. Thanx

2006-10-10 10:42:36 · 5 answers · asked by Anonymous in Mathematics

2006-10-10 10:42:32 · 1 answers · asked by Anonymous in Physics

Robert has been to Africa five times in five different years (1983, 1987, 1992, 1996, 1999). In each case, he visited a different country with a different person. Figure out the year in which he visited each country and the person with whom he was traveling




CLICK THE LINK BELOW TO SEE THE PROBLEM..

http://i71.photobucket.com/albums/i157/yankee_914/untitledLLKIO.jpg

2006-10-10 10:40:55 · 2 answers · asked by Anonymous in Mathematics

what are some stuff made out of zinc?

2006-10-10 10:40:40 · 6 answers · asked by amy 1 in Other - Science

Nocturnal means active at night and diurnal is active in the day but what do you call something that is most likely to be out and about on the borders between night and day.

2006-10-10 10:34:25 · 11 answers · asked by alan P 7 in Biology

i dont know anything about falling stars. but if there is no gravity in space how can is a shooting star exist?

2006-10-10 10:33:39 · 35 answers · asked by duenorth18 2 in Astronomy & Space

By "where does it come from" I mean "what is the origine of this gas"...

2006-10-10 10:33:27 · 5 answers · asked by Alexis (From France) 1 in Chemistry

welll my hight is 180 cm
i would like 2 know my hight in feets!
plus
How many cm's r in 1 feet
thanx 4 all the ppl that r going answer!

2006-10-10 10:32:50 · 9 answers · asked by Anonymous in Mathematics

Please help, Astronomy question!

2006-10-10 10:31:25 · 2 answers · asked by Sarah 3 in Astronomy & Space

2006-10-10 10:30:53 · 2 answers · asked by Daisy 2 in Chemistry

Solve the following system of equations.

-6x + 10y = 5
-2x + 3y = -1

a. x = 11 1/2, y = 8
b. x = 25/38, y = 2/19
c. x = 12 1/2, y = 8
d. x = 13/38, y = 2/19

2006-10-10 10:29:55 · 8 answers · asked by JoAnna 2 in Mathematics

2006-10-10 10:28:23 · 7 answers · asked by joyce_antonette 2 in Biology

Do you know an extremely difficult percent problem?
If so I want to hear it! The most difficult will get best answer!

2006-10-10 10:28:15 · 2 answers · asked by Azena 4 in Mathematics

2006-10-10 10:27:12 · 9 answers · asked by sportsboy1792@sbcglobal.net 1 in Astronomy & Space

I am studying Forensic science and we are using these equations to identify reactants to 2.46Kg Aluminium Oxide and how much reactants was used to create an explosive. This would enable us to check with stores for possible suspects.

2006-10-10 10:24:41 · 4 answers · asked by Dominic R 1 in Chemistry

I am a IB student. This is from IB Bio Hl. WE did a lab in which under a microscope we placed a leaf from a elodea plant. We then added glucose and had to figure out what happened. Then we used distilled water to wash the glucose and had to note what happened when we added distilled water. We repeated the experiment using sodium. I'm not very good and Biology and that question is part of my lab. Any help would be appreciated.

2006-10-10 10:23:53 · 4 answers · asked by sunnyblueus 1 in Biology

Why, then, doesn't a heavy body fall faster than a light body?

2006-10-10 10:23:18 · 7 answers · asked by Gordito 1 in Physics

I am a IB student. This is from IB Bio Hl. WE did a lab in which under a microscope we placed a leaf from a elodea plant. We then added glucose and had to figure out what happened. Then we used distilled water to wash the glucose and had to note what happened when we added distilled water. We repeated the experiment using sodium. I'm not very good and Biology and that question is part of my lab. Any help would be appreciated.

2006-10-10 10:22:15 · 4 answers · asked by sunnyblueus 1 in Biology

2006-10-10 10:21:04 · 11 answers · asked by Anonymous in Astronomy & Space

what was the balance after checks were written for dollar 25 and for dollar 32

2006-10-10 10:20:39 · 11 answers · asked by Anonymous in Mathematics

Why do both the sun and the moon exert a greater gravitational force on one side of the eath than on the other?

2006-10-10 10:20:39 · 4 answers · asked by Gordito 1 in Physics

A force of 50N applied to the end of a lever moves that end a certain distance. If the other end of the lever is moved half as far, how much force does it exert?

2006-10-10 10:17:12 · 2 answers · asked by Gordito 1 in Physics

more bio homework =]

2006-10-10 10:16:56 · 2 answers · asked by Jessica G 1 in Biology

2006-10-10 10:16:28 · 2 answers · asked by billy b 3 in Engineering

If "t" is a positive integer and "r" is the remainder when t^2 + 5t + 6 is divided by 7, what is the value of R?

Are either of these sufficient?

Given A: When "t" is divided by 7, the remainder is 6.
Given B: When t^2 is divied by 7, the remainder is 1.

(side note when you plug in 13, or 26 in for "t" the remainder is 1, but if you plug 21 for t, the remainder is not 1. Yet GMAT says A is sufficient. ) Can you guys crack it

2006-10-10 10:15:44 · 4 answers · asked by Jason A 1 in Mathematics

2006-10-10 10:15:10 · 5 answers · asked by Anonymous in Biology

Bill is reading a 216- page book. He needs to read twice as many pages as he has allready read. Using the guess-and-check stratagy to determine how many pages he has read

2006-10-10 10:14:29 · 12 answers · asked by kacak15348 1 in Mathematics