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How to find how many grams of nitrogen would fill 240 L (answer)

You want to use the Ideal gas Law for this problem since you have all the necessary information. PV=nRT Solve for n PV/RT=n plug in your information, remembering to use 0.08206 L·atm·mol−1·K−1 for R and to convert 29C to Kelvin. Now you get how many moles of N you have. 12...

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The Handwriting on the Wall

In Daniel 5, Belshazzar gets the "handwriting on the wall" (that's where the modern phrase comes from) and Darius the Mede conquers him without hardly a fight. Having drunk soldiers for gate guards will do that. This is the end of Babylon as far as reigning kings. Then Darius takes over and the Medes and Persians reign (as noted in Daniel 2). However, archaeologists could not find... read more

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how to do scientific notation (answer)

Scientific Notation is done by reducing the number that you have to a number between 1 and 10. Then you have that number multiplied by the proper factor of 10 to get your original number.  For instance, 1,030,000 to be written in scientific notation, you have to make it a number between...

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what's the easiest way to balance chemical equations? (answer)

Well, the answer is that there is no easy way to balance chemical equations. Some ways are easier than others but they all require some guesstimation. The best formula I've found to balance equations is to do the steps in the following order. -Metals -Non-metals -Unchanged polyatomic...

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how do I work out the problem x/-7 +9 = 6 (answer)

First thing you do is take get everything on the opposite side of x. To do that, start by taking the parenthesis off first. Then take the (-7) and moving it over. x/-4 + (-7) = (-16) x/-4 - 7 = -16 x/-4 - 7 + 7 = -16 +7  Remember, whatever you do to one side, you have...

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Physics and the Martial Arts

What does physics and martial arts have in common? A lot, actually. For instance, the formula for Force is F=ma^2, where F is Force, m is Mass and a is Acceleration. Now think this through. If an individual bulks up his mass and doubles it, what does that do for his strength? It effectively doubles it. But what if he doubles his acceleration, his speed, per se? His force quadruples! When you... read more

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My favorite quotes on education

The advertisement on Wyzant asked for my favorite quotes on education. So I feel obliged to recount them. "Education without salvation is damnation." --Bob Jones Sr, Founder of Bob Jones University Brains and education can be a fantastic thing. But, in and of itself, education is not the supreme good. It is not a goal, in and of itself. The devil is not a dummy. He is the smartest... read more