Science & Mathematics - 11 December 2006

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Why isn't N2 Gas usable?

2006-12-11 09:50:56 · 8 answers · asked by K L 3 in Engineering

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What is the property 999 + 0= 999?

PRe-Algrebra

2006-12-11 09:49:40 · 5 answers · asked by jack b 2 in Mathematics

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What is the Least Common Multiple of 3,9 and 22?

We think it is 198 but the teacher said it was wrong???

2006-12-11 09:48:03 · 7 answers · asked by Jessily 1 in Mathematics

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it says:
write each fraction in simplest form....
the first number is 24 over 8.... what would that be in simplest form and how do i turn it into a simplest for?

-and-

find any fraction equivalent to the given fraction.
first number is 4 over 5... how do i figure out that problem???

thank u lots

2006-12-11 09:46:25 · 5 answers · asked by Anonymous in Mathematics

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total number of electrons transfered in following oxidation reduction reaction?

2Al (s) + 3Cu2 + (aq) +6Cl- (aq) ----------- 2Al3 + (aq) + 6Cl- (aq) + 3Cu (s)

2006-12-11 09:45:50 · 2 answers · asked by rnjes21 2 in Chemistry

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Which of the following is a disaccharide?

a. Sucrose
b. Glucose
c. Fructose
d. Galactose

2006-12-11 09:44:26 · 4 answers · asked by Anonymous in Botany

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what are the products of heated sodium bicarbonate?

2006-12-11 09:42:54 · 2 answers · asked by merr*herr 1 in Chemistry

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to determine the proportion of students at a university who favor the construction of a parking garage,?

a sample of people driving through the student center parking lot is surveyed and it is found that 45% favor the garage. The actual proportion of the student body who favor the garage is 40%. The difference is most likely an example of sampling: A. bias or B. Variability

2006-12-11 09:42:32 · 1 answers · asked by Eugene D 1 in Mathematics

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Are there any facts that make global warming a fact?

I have to prepare a debate on this topic. I am on the supporting side.
If you give me info, please try and give the link for where it came from.

2006-12-11 09:42:27 · 7 answers · asked by profgig 1 in Earth Sciences & Geology

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How do you graph 3x+2y=5 on a Cartesan Plane?

2006-12-11 09:41:20 · 3 answers · asked by segenovmoltock 2 in Mathematics

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Solve an algebra question?

For all x≠0 and y≠0

(3x^-2y^3)^2
----------------- =
xy

2006-12-11 09:40:31 · 2 answers · asked by Mustng0021 5 in Mathematics

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What model of the universe had the sun as the center of rotation of the planets?

2006-12-11 09:36:58 · 9 answers · asked by jody t 1 in Astronomy & Space

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what is the general strategy to solve sudoku?

which approach is better box or raw/column?

2006-12-11 09:35:27 · 6 answers · asked by yohannes c 1 in Mathematics

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whats 3/4 of 200?

...............

2006-12-11 09:31:47 · 21 answers · asked by Anonymous in Mathematics

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can an o- and o+ couple have an a+ child?

2006-12-11 09:29:09 · 12 answers · asked by no name jain 1 in Biology

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how do you change decimal to percent and percent to decimalS?

2006-12-11 09:24:52 · 10 answers · asked by ~TwInKiE~ 2 in Mathematics

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Discuss a real-life situation where a straight-line graph might be applicable and explain why you think this m

2006-12-11 09:24:43 · 4 answers · asked by CelticMoonGoddess 2 in Mathematics

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What is this property 6 times 1?

its for pre-algrebra

2006-12-11 09:24:31 · 9 answers · asked by jack b 2 in Mathematics

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OK, wanna try a cool problem to solve?

here you go:

You have 12 coins. One of these coins is a fake. It differs from the rest only by it's weight. You don't know whether it is lighter or heavier the the rest of the coins.
You also have a scale, but not the electronic one, the two-cups one, with which you can only tell which cup has more or less weight.
And you only have 3 times to weight the coins to find out which one is a fake.
Remember once again : YOU DON'T KNOW IF THE FAKE COIN IS LIGHTER OR HEAVIER THE THE REST. ONLY 3 WEIGHS.
Solve that! :))))

P.S. Took me 2 weeks to solve. I thought about every day for a couple of hours per day.

2006-12-11 09:24:14 · 6 answers · asked by Anonymous in Other - Science

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whats 1/3 of 8 ounces of milk?

................

2006-12-11 09:24:07 · 9 answers · asked by Anonymous in Mathematics

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the idea that the universe began with an explosion is called the ??????? Theory?

2006-12-11 09:23:50 · 11 answers · asked by jody t 1 in Astronomy & Space

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our galaxy is called the ????

2006-12-11 09:22:58 · 28 answers · asked by jody t 1 in Astronomy & Space

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What is the mallow plant?

Please add websites if you can.

2006-12-11 09:22:46 · 2 answers · asked by Caitlin L 2 in Botany

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Conductivity question?

If you wish to cool a warm can of fruit salad by quickly putting it in the fridge, would you leave the paper wrapper on or remove it? Assume that the conductivity of the wrapper is much smaller than that of the can.

2006-12-11 09:22:39 · 4 answers · asked by lindsey_6_3 2 in Physics

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What color should the box be painted?

Ona camping trip a wooden box is to be used as an outdoor refrigerator. How would you suggest painting the exterior or the box to minimize absorption of visible electromagnetic radiation? Explain.

2006-12-11 09:21:06 · 8 answers · asked by lindsey_6_3 2 in Physics

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