Recent content by mineys

yes. pure diamond is a single molecule. It is a bunch of carbon molecules which have all covalently boded to each other in a tetrahedral arangement. The covalent bonds are stronger then ionic bonds which is why you can split a chunk of salt really easily, but with a diamond, tough luck. An...

well, your pen could be rotating. If you put a pen on a table, you can apply torque to the pen so that it will rotate around its centre of gravity. The same will happen with your pen around your finger, because you place your finger close to the pen's center of gravity, and then apply torque...

instead of "=", try "==". = usually sets somthing to a variable, == compares them.

So there are three guys fresh out of college who want to save money, so they decide to rent a room. The room costs 30 dollars, so they split it 10-10-10. They pay, but it turns out the room is only $25, so the manager asks the bellboy to take $5 and to give it back. The bellboy takes a 'tip'...

I agree more with the physics of Firefly, but I like Battlestar Galactica almost as much.

no...looks like there are some redox reactions in there too. Those last couple are definatly redox. for #4, where did you get the Cl2-? Concentrated hydrochloric acid solution is H+ + Cl-. I think that "Most chloride, bromide, and iodide salts are soluble with the notable exeptions of...

the greenish substance is probably not Cu+. Cu+ is unstable, and has a tendency to become Cu2+ which will turn your solution blue-green(mostly blue). This greenish substance, what physical state does it take?

This is excellent. A lot of interesting responses, and a lot of correct ones too! very good...am I the only one who found this fun?

Just to tease your minds, I propose this question. The Earth is rotating, right? centripetal motion is provided by gravity. Objects undergoing circular motion tend to travel in a tangental trajectory relative to the circle they are released from. If we say the Earth is still, and the universe...

Well, if you are going to talk about infinite universes, I feel it is my duty to take a page from Douglas Adams. Or at least use his general argument. With an infinite number of parallel universes, there must be one of this universe, except a finite number(1) over infinity is equal to zero...

Well, technically, neglecting air resistance, as is so popular in physics these days, if the bullet were to collide with an object at the instant it is shot out of the gun, it would apply the same force as if the bullet was falling back to its original position. But hallsofivy is very right...

Well, first of all, the first ionization energy of Ca is greater than that of K because Calcium's nucleus is more effective due to an increased effective nuclear charge. Next, the second ionization energy of Calcium is less than that of K because it is removing an electron from a more excited...